In 1926, astronomer Edwin Hubble gave us our first basic galaxy classification scenario – the Hubble Sequence. Using photographic plates, Hubble derived a simplistic system based on three visually known structures: elipitical, spiral and lenticular. This sequence, when plotted out, gave the appearance of a common object and eventually became known as the “Hubble Tuning Fork” (as seen above). For many decades, this served as a standard. Now the ATLAS3D Project is calling a different tune…
Just who is the pied piper in this merry band? The ATLAS3D project is a multiwavelength survey combined with a theoretical modelling effort. The observations it takes spans from the radio to the millimetre and optical. It provides multicolor imaging, as well as two-dimensional kinematics of the atomic, molecular and ionized gases, together with the kinematics and population of the stars, Where does it dance? Only around a carefully selected, volume-limited sample of 260 early-type galaxies.
Heading up the project is a team of 25 astronomers from Europe and Northern America, including ASTRON astronomers Morganti, Oosterloo, and Serra – and all with a mission – to update and revise our understanding of galactic evolution. Employing the SAURON spectrograph on the 4.2-meter William Herschel Telescope on La Palma, the team was able to distinguish stellar movement in the pre-determined galactic candidates. These new assessments show that spheroid galaxies belong to the spiral galaxy classification. How did they come to that conclusion? The largest portion of spheroids – or early types – are basically the same family as spirals and evolve along a similar line. But with ATLAS3D findings, we’re looking at new concepts.
Maps of the observed velocity of the stars in the volume-limited sample of 260 early-type galaxies of the ATLAS3D survey. Red/blue colours indicate stars moving away/towards us respectively. Fast rotating and disk-like galaxies are characterized by two large and symmetric red/blue peaks at the two sides of the centre. This figure shows that this class of objects constitutes the vast majority of the sample. Credit: ATLAS3D Project
We’re seeing beyond the optical (photographic plates) which founded Hubble’s original diagram – where once galaxies were separated by their distinct characteristics such as rapid rotators rich in stars and gas – or as slowly moving, gas-poor models. Up until now, it was also next to impossible to distinguish sparse “face-on” structure from edge-on spheroids. With the aid of kinematic data astronomers can “see” rotation – allowing observation of all galaxy types from any angle.
“Slow and fast rotators tend to be classified as ellipticals and lenticulars, respectively, but the contamination is strong enough to affect results solely based on such a scheme: 20 per cent of all fast rotators are classified as ellipticals, and more importantly 66 per cent of all ellipticals in the ATLAS3D sample are fast rotators.” says the team. “Our complete sample of 260 ETGs leads to a new criterion to disentangle fast and slow rotators which now includes a dependency on the apparent ellipticity. It separates the two classes significantly better than the previous prescription.”
While it will take many years and many more observations to sort out all the new data, it would seem that our current understanding of galactic evolution just might need a “tune up”.
Spirit’s last panoramic from Mars was taken during February 2010 before her death. Featured on Astronomy Picture of the Day (APOD) on 30 May 2011. Spirit’s final panoramic picture show from Mars was snapped on Sol 2175 in February 2010 before entering hibernation mode in March 2010 just prior to the onset of her 4th Martian winter. Spirit was just 500 feet from her next science target - dubbed Von Braun – center of the mosaic. The Columbia Hills form the backdrop to the mosaic from Spirits final resting place. Spirit never awoke. NASA ceased all communications attempts with Spirit on May 25, 2011. Credit: Mosaic by Marco De Lorenzo and Ken Kremer, images NASA/JPL/Cornell University.
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Scientists leading NASA’s Mars rover team have selected “Spirit Point” as the name for the spot where the “Opportunity” Mars rover will arrive at her next destination – Endeavour Crater. The site was named in honor of the death of the “Spirit” Mars Exploration Rover, which NASA recently declared has ceased all communications with Earth.
Spirit’s passing comes after more than six highly productive years roving the surface of the red planet as humankind’s surrogate. NASA concluded the last attempt to communicate with Spirit in a transmission on May 25, 2011.
“First landfall at Endeavour will be at the southern end of Cape York [at Spirit Point],” Steve Squyres told me. Squyres of Cornell University, Ithaca, N.Y., is principal investigator for the rovers. Read tributes from the Spirit rover science team below.
In memory of Spirit, the last panorama she snapped on Sol 2175 in February 2010 was featured on Astronomy Picture of the Day (APOD) on May 30, 2011 and is the lead image here. The photo mosaic was created by Marco Di Lorenzo and Ken Kremer and shows some of the last scenes that Spirit ever photographed.
Spirit approaches von Braun mound in April 2009
This mosaic of images was collected on Sol 1869 in April 2009 as Spirit approached a mysterious circular volcanic mound known as Von Braun, at left. Foreground at center, left ahead shows where Spirit became stuck in a concealed sand trap of slippery, water related sulfate minerals lying adjacent to the eroded volcanic plateau named Home Plate. Columbia Hills in the background.
Mosaic Credit: Kenneth Kremer/Marco Di Lorenzo/NASA/JPL/Cornell
Endeavour’s massive rim consists of a series of ridges. Cape York is a 400 foot wide (120 meters) rim fragment at the western edge of Endeavour. Opportunity should reach “Spirit Point” before the end of this year, 2011.
“Spirit Point” was chosen as the site at Endeavour to commemorate the scientific achievements of Opportunity’s twin sister “Spirit”. Endeavour Crater was determined to be Opportunity’s long term destination nearly three ago after she departed the environs of Victoria crater.
“The Initial exploration plan will be decided when we get closer. The [science] priorities will depend on what we find,” Squyres added.
Since August 2008, the blistering pace of Opportunity’s long overland trek of about 11 miles (18 kilometers) has brought the golf cart sized robot to within about 2 miles (3 kilometers) of the rim of the humongous Endeavour crater – some 14 miles (22 kilometers) in diameter. Endeavour is more than 20 times wider than Victoria crater and by far the largest feature the Opportunity will ever explore – see route maps below.
This oblique view with moderate vertical exaggeration shows the portion of the rim of Endeavour crater given the informal name "Spirit Point." This is the location where the team operating NASA's Mars Exploration Rover Opportunity plans to drive the rover to its arrival at the Endeavour rim. As of mid-June 2011, Opportunity was about 2 miles away from the rim of Endeavour. Credit: NASA/JPL-Caltech/Univ. of Arizona
“Spirit achieved far more than we ever could have hoped when we designed her,” according to Squyres in a NASA statement. “This name will be a reminder that we need to keep pushing as hard as we can to make new discoveries with Opportunity. The exploration of Spirit Point is the next major goal for us to strive for.”
The imaging team of Marco Di Lorenzo and Ken Kremer created a series of Spirit photomosaics from publically available images to illustrate the location and hazardous nature of Spirits final resting place – which fortuitously turned out to be a scientific goldmine revealing new insights into the flow of liquid water on Mars billions of years ago.
Mosaic of microscopic images of Spirit’s underbelly on Sol 1925 in June 2009
Mosaic shows predicament of being stuck at Troy with wheels buried in the sulfate-rich Martian soil. This false color mosaic has been enhanced and stretched to bring out additional details about the surrounding terrain and embedded wheels and distinctly shows a pointy rock perhaps in contact with the underbelly.
Mosaic Credit: Marco Di Lorenzo/ Kenneth Kremer/NASA/JPL/Cornell
The western rim of Endeavour possesses geological deposits far older than any Opportunity has investigated before and which may feature environmental conditions that were more conducive to the potential formation of ancient Martian life forms.
Spirits last transmissions to Earth took place in March 2010, before she entered hibernation mode due to ebbing solar power and succumbed to the likely damaging effects of her 4th Martian winter.
Spirit was closing in on her next science target, a mysterious volcanic feature named Von Braun, when she became mired in a sand trap named “Troy” on the outskirts of the eroded volcano named “Home Plate, just about 500 feet away. See our mosaics.
Spirit embedded at sand trap in February 2010 on Sol 2174
Numerous attempts by the rover team failed to extricate Spirit from the sand trap at Troy in which she became mired in May 2009 on the western edge of Home Plate. Mosaic shows last robotic arm maneuver before hibernation and above bright toned soil containing hydrated sulfates. Mosaic Credit: Marco Di Lorenzo/ Kenneth Kremer/ NASA/JPL/Cornell
Unable to escape and absent of sufficient power to run critical survival heaters, Spirit experienced temperatures colder than ever before that probably crippled fragile electronics components and connections and prevented further communications – although no one knows for sure.
NASA’s twin rovers Spirit and Opportunity have been exploring the Martian terrain on opposite sides of the red planet since the dynamic duo successfully landed over 7 years ago in January 2004.
Both robots were expected to last just three months but have accumulated a vast bonus time of exploration and discovery in numerous extended mission phases.
*** Several top members of the rover science team kindly provided me some comments (below) to sum up Spirits achievements and legacy and what’s ahead for Opportunity at Endeavour.
Ray Arvidson of Washington University, St Louis, Deputy Principal Investigator for the rovers:
“Spirit’s last communication with Earth was in March 2010 as the southern hemisphere winter season began to set in, the sun was low on the horizon, and the rover presumably stopped communicating to use all available solar power to charge the batteries.
Von Braun was one of the two destinations Spirit was traveling to when the rover became embedded in soft sands in the valley to the west of Home Plate.
Von Braun is a conically-shaped hill to the south of Home Plate, Inner Basin, Columbia Hills. Goddard is an oval-shaped shallow depression to the west of von Braun and was the second area to be visited by Spirit. Both von Braun and Goddard are suspected to be volcanic features.
Spirit is the brightest spot in this image taken on 31 March 2011 from Mars orbit. Spirit is gleaming in the sun beside Home Plate inside Gusev Crater. The solar panels are not covered by an optically thick layer of dust. Spirit last communicated on 22 March 2010. Credit: NASA/JPL/UA
During Spirit’s six year and two month mission the vehicle acquired remote sensing and in-situ observations that conclusively demonstrated that the ancient Columbia Hills in Gusev Crater expose materials that have been altered in water-related environments, including ground water corrosion and generation of sulfate and opaline minerals in volcanic steam vents and perhaps hydrothermal pools.
Together with its sister rover, Opportunity, the Mars Exploration Rover Mission, was designed to “follow the water” and return data that would allow us to test the hypothesis that water was at and near the surface during previous epochs.
Opportunity is still exploring the evidence in Meridiani for ancient shallow lakes and is on the way to outcrops on the rim of Endeavour crater, a ~20 km wide crater that exposes the old Noachian crust that shows evidence from orbital data for hydrated clay minerals.
These two rovers have performed far beyond expectations, unveiled the early, wet history of Mars, and have made an enormous scientific return on investment.”
Steve Squyres of Cornell University, Ithaca, N.Y., Principal Investigator for the rovers:
“Our best hope for hearing from Spirit was last fall. When that didn’t happen, we began a long, careful process of trying every possible approach to re-establishing contact. But it slowly became clear that it was unlikely, and I personally got used to the idea that Spirit’s mission was probably over several months ago.
Once that right front wheel failed, Spirit’s days were numbered in that kind of terrain. It wouldn’t have made any difference if we had tried to move Spirit sooner. We were very lucky to have survived as long as we did.
One of the lessons learned is to try to keep the wheels from failing.
It’s very sad to lose Spirit. But two things have softened the blow. First we’ve had a long time to get used to the idea. Second, even though Spirit is dead, she died an honorable death. If we’d lost her early in the mission, before she accomplished so much, it would have been much harder. But she accomplished so much more than any of us expected, the sadness is very much tempered with satisfaction and pride.
The big scientific accomplishments are the silica deposits at Home Plate, the carbonates at Comanche, and all the evidence for hydrothermal systems and explosive volcanism. What we’ve learned is that early Mars at Spirit’s site was a hot, violent place, with hot springs, steam vents, and volcanic explosions. It was extraordinarily different from the Mars of today.
Opportunity is heading at high speed for the rim of Endeavour Crater. First landfall will be at the southern end of Cape York. She should be there in not too many more months.
It hasn’t yet been decided where Opportunity will attempt to climb up Endeavour… we’ll see when we get there.
The phyllosilicates are a high priority, but the top priority depends on what we find.
The yellow line on this map shows where NASA's Mars Rover Opportunity has driven from the place where it landed in January 2004 -- inside Eagle crater, at the upper left end of the track -- to a point about 2.2 miles (3.5 kilometers) away from reaching the rim of Endeavour crater. Credit: NASA/JPL-Caltech/MSSS
I hope Spirits legacy will be the inspiration that people, especially kids, will take away from Spirit’s mission. I have had long, thoughtful conversations about Spirit with kids who have had a rover on Mars as long as they can remember. And my fondest hope for Spirit is that somewhere there are kids who will look at what we did with her, and say to themselves “well, that’s pretty cool… but I bet when I grow up I can do better. That’s what we need for the future of space exploration.
Spirit existed, and did what she did, because of the extraordinary team of engineers and scientists who worked so hard to make it possible. It’s a team that I’m incredibly proud to have been a small part of. Working with them has been quite literally the adventure of a lifetime.”
Jim Bell of Arizona State University, lead scientist for the rovers Pancam stereo panoramic camera:
“It is with a bittersweet sense of both sadness and pride that NASA announced the official end of the mission for the Mars Exploration Rover Spirit.
The Spirit team has seen the end coming since communications were lost with the rover in March 2010. Mission engineers made heroic efforts to reestablish contact. In the end Spirit was conquered by the extremely cold Martian winter and its two broken wheels, which prevented its dusty solar panels from pointing toward the Sun.
But what a mission! Designed to last 90 days, Spirit kept going for more than six years, with the team driving the rover almost 5 miles (8 km) across rocky volcanic plains, climbing rugged ancient hills, and scurrying past giant sand-dune fields. It eventually spent most of the mission near the region known as Home Plate, which is full of layered, hydrated minerals.
Data from the rover enabled dozens of scientific discoveries, but three stand out to me as most important:
Hydrated sulfate and high-silica soils in the Columbia Hills and around Home Plate.
These minerals, and the environment in which they occur (Home Plate is a circular-shaped, finely layered plateau that may be the eroded remains of a volcanic cone or other hydrothermal deposit), tell us that at some point in the past history of Gusev there was liquid water and there were heat sources — two key ingredients needed to consider the area habitable for life as we know it.
Carbonate minerals in some of the rocks within the Columbia Hills.
Carbonates were expected on Mars, if indeed the climate was warmer and wetter in the past. However, their detection has been elusive so far. Indeed, the Spirit team had to work hard to uncover the signature of carbonates years after the rover made the measurements. As the analysis continues the results for Mars in general could be profound.
An incredible diversity of rock types, from all over Mars, that Spirit was able to sample in Gusev crater.
Some of the rocks appear to be from local volcanic lava flows or ash deposits. But others have likely been flung in to the area over time by distant impacts or volcanoes, and a few even appear to be meteorites, flung in from outer space. Spirit’s instruments provided the team with the ability to recognize this amazing diversity, and thus to learn much more about Mars in general, not just Gusev in particular.
Spirit also helped us test an experiment: If we put all the rover’s images out on the Web for everyone in the world to see, in near real-time, would people follow along? They did!
I wonder if, maybe 10 or 15 years from now, I’ll meet some young colleagues who were turned on to space exploration by being able to check out the latest Spirit images from Mars from their classroom, or living room, every day when they were a kid. That would be extremely satisfying — and a great testament to the power of openly sharing data from space exploration missions like Spirit’s.
Meanwhile, Opportunity continues to rove on to city-size Endeavour crater, where orbital measurements have identified, for the first time in either rover’s mission, the signatures of clay minerals in the crater’s rim. Clays are also formed in water, but in less acidic, perhaps more life-friendly water than the sulfates that Opportunity has been mapping thus far.”
Rob Manning, Jet Propulsion laboratory, Pasadena, CA., Mars Rover Spacecraft System Engineering team lead
“Although Opportunity has proven her endurance, Spirit was the one we struggled with the hardest to get what she earned. Suffering from late repair and modification, a blown fuse in her power system and with possibly damaged circuits, she was very late getting out the door and onto the pad in Florida.
Unlike Opportunity, whose Hematite-laden Meridiani destination had been established long before launch, Spirit was launched with a great deal of uncertainty on where she would find herself on Mars. Would it be the flat and safe plains of Elysium? Would the intriguing but rough ancient Gusev crater with what appears to have been an ancient river flowing into a giant but now dry lake?
If Opportunity failed to get on her way to Mars, would her destination become Meridiani? Would Spirit have also been as lucky to find herself bouncing into a tiny rock-outcropped crater as Opportunity had?
Only after the successful launch of Opportunity followed by further successful rocket and airbag tests to confirm that the landing system design would work in the rougher terrain inside Gusev crater allowed us to seal her fate and her permanent home.
She would go Gusev and test the Gusev lake hypothesis. Sadly the surface of Gusev where she came to rest revealed a meteor impact-tilled lake of ancient lava. Any signs of ancient water lake beds and other fantastic discoveries would have to wait until she surmounted many more obstacles including summiting a formidable hill her designers never intended her to attempt.
Spirit, her designers, her builders, her testers, her handlers and I have a lot to be thankful for.
That NASA, the congress and the public were willing to trust us with this daunting feat is perhaps a statement about the persistent spirit of discovery that remains in all of us.
I think that Spirit is alive and well.”
Map mosaic shows 7 Year and 30 Kilometer Long Journey of Opportunity approaching Endeavour Crater. Opportunity is being targeted to Spirit Point on the rim of Endeavour Crater, to honor her now dead sister. Photo mosaic of Santa Maria crater at top right was featured on Astronomy Picture of the Day on 29 January 2011. Mosaic shows Opportunity self portrait at the rim of Santa Maria where she investigated signatures of hydrated mineral deposits.
Mosaic Credit: NASA/JPL/Cornell/Marco Di Lorenzo/Kenneth Kremer
A 2001 photo from the space shuttle shows a phenomenon called von Karman vortices in clouds downwind from Rashiri Island in the northern Sea of Japan. The vortices are similar to those that form in superfluids. Credit: NASA
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At nearly the coldest temperature possible – mercury (with the aid of liquid helium) – forms a state called superconductivity. At the extreme, electrons flow unencumbered through what is known as a superfluid. But the hows and whys of superfluid behavior defied explanation. Until now…
When taken to within a few degrees of absolute zero on the Kelvin scale (minus 273 Celsius or minus 460 Fahrenheit), liquid helium-4 turns into the remarkable superfluid state. It swirls, it curls, and it’s lack of body has been baffling scientists for nearly a century. Now a team led by a University of Washington physicist, using the most powerful supercomputer available for open science, has cooked up a theoretical picture which explains the real-time behavior of superfluid. Just who is the responsible party here? Try subatomic particles called fermions.
Femions are a much a part of the natural equation as electrons, protons and neutrons… just as superfluids are part of neutron stars. Rotating between one and 1,000 times a second, neutron stars – or pulsars – superfluid surface acts much differently than its counterpart here on Earth. As the speed increases, it forms a series of small vortices which group in a triangular pattern… which in turn forms a braid within the superfluid structure. “When you reach the correct speed, you’ll create one vortex in the middle,” Bulgac said. “And as you increase the speed, you will increase the number of vortices. But it always occurs in steps.”
Can science recreate it? Yes. Laboratory models utilizing a vacuum chamber and a laser beam to create a high-intensity electrical field have managed to chill a small sample, perhaps 1 million atoms, to temperatures near absolute zero. Then a “laser spoon” is employed to stir the superfluid fast enough to create vortices.
“In trying to understand the odd behavior, scientists have attempted to devise descriptive equations, such as ones they might use to describe the swirling action in a cup of coffee as it is stirred.” Bulgac said. “But to describe the action in a superfluid made of fermions, a nearly limitless number of equations is needed. Each describes what happens if just one variable – such as velocity, temperature or density – is changed. Because the variables are linked, if one changes others will change as well.”
One of the major challenges in formulating a mathematical hypothesis is the amount of computing power it would take to work through a problem with a number of variable changes that reached 1 trillion or more. So how did they do it? The team used the JaguarPF computer at Oak Ridge National Laboratory in Tennessee, one of the largest supercomputers in the world, for the equivalent of 70 million hours, which would require almost 8,000 years on a single-core personal computer (JaguarPF has nearly a quarter-million cores). Just try to cool that!
“This tells you the complexity of these calculations and how difficult this is,” Bulgac said. To make matters even more complex, the faster the superfluid is stirred causes it to lose its properties – but not as fast as hypothesized. “The work means that researchers can ‘to some extent’ study the properties of a neutron star using computer simulations.” Bulgac said. .”It also opens new directions of research in cold-atom physics.”
The 7 Year and 30 Kilometer Long Journey of Opportunity to June 1, 2011. This collage of martian surface mosaics and orbital maps shows the entire route traversed by NASA’s Opportunity Mars Rover from landing on Jan 24, 2004 to surpassing the 30 kilometer driving mark on June 1, 2011(see map notation). Opportunity is on an overland expedition driving to Endeavour Crater, some 22 km in diameter. Photo mosaic of Santa Maria crater at bottom shows one of the last spots investigated by Opportunity on Sol 2519, Feb. 23, 2011 before departing for Endeavour in March 2011. The exposed rock named Ruiz Garcia showed signatures of hydrated mineral deposits located at southeast portion of Santa Maria crater. Credit: NASA/JPL/Cornell Marco Di Lorenzo, Kenneth Kremer
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With her most recent drive of 482 feet (146.8 meters) on June 1, 2011 (Sol 2614), NASA’s Opportunity Mars Rover has zoomed past the unimaginable 30 kilometer (18,64 miles) mark in total odometry since safely landing on Mars nearly seven and one half years ago on Jan 24, 2004. That’s 50 times beyond the roughly quarter mile of roving distance initially forseen.
Opportunity is now 88 months into the original 3 month mission “warranty” planned by NASA and the rover team. That’s over 29 times beyond the original design lifetime and an achievement that no one on the rover teams ever expected to observe.
And Opportunity is still going strong, in good health and has abundant solar power as she continues driving on her ambitious overland trek across the martian plains of Meridiani Planum. She is heading to the giant Endeavour crater, some 22 km (14 miles) in diameter.
Opportunity snaps Skylab Crater in 3 D during approach to Endeavour Crater
This stereo view of Skylab Crater was captured by Opportunity on Mars on Sol 2594, or May 12, 2011, along the rovers route to giant Endeavour Crater. This young crater is about 30 feet (9 meters) in diameter.and was likely formed within the past 100,000 years. Credit: NASA/JPL-Caltech
At this point Endeavour is barely 2 miles (3.5 km) away since Opportunity departed from Santa Maria Crater in March 2011. Landfall at Endeavour is expected sometime later this year.
Endeavour is a long awaited and long sought science target because it is loaded with phyllosilicate clay minerals. These clays have never before been studied and analyzed first hand on the red planets surface.
Opportunity snaps Skylab Crater in 2 D during approach to Endeavour Crater
This view of Skylab Crater was captured by Opportunity’s navigation camera on Mars on Sol 2594, or May 12, 2011, along the rovers route to giant Endeavour Crater. This young crater is about 30 feet (9 meters) in diameter. The blocks of material ejected from the crater-digging impact sit on top of the sand ripples near the crater. This suggests, from the estimated age of the area's sand ripples, that the crater was formed within the past 100,000 years. The dark sand inside the crater attests to the mobility of fine sand in the recent era in this Meridiani Planum region of Mars. The rover view spans 216 degrees from northwest on the right to south on the right. Credit: NASA/JPL-Caltech
Phyllosilicate clays formed in neutral watery environments, which are much more conducive to the formation of life compared to the highly acidic environments studied up to now by Spirit and Opportunity. NASA’s Curiosity rover is due to land on Mars in 2012 at a site the science team believes is rich in Phyllosilicates.
In recent weeks, Opportunity has passed by a series and small young craters as she speeds to Endeavour as fast as possible. One such crater is named “Skylab”, in honor of America’s first manned Space Station, launched in 1973.
Now whip out your 3 D glasses and check out NASA’s newly released stereo images of “Skylab” and another named “Freedom 7” in honor of Alan Shepard’s flight as the first American in space. Be sure to also view Opportunity’s dance steps in 3 D performed to aid backwards driving maneuvers on the Red planet
Freedom 7 Crater on Mars 50 Years after Freedom 7 Flight
Opportunity recorded this stereo view of a crater informally named Freedom 7 shortly before the 50th anniversary of the first American in space: astronaut Alan Shepard's flight in the Freedom 7 spacecraft on May 5, 1961. Opportunity took this image on Sol 2585 on Mars on May 2, 2011. The crater is about 25 meters (82 feet) in diameter. It is the largest of a cluster of about eight craters all formed just after an impactor broke apart in the Martian atmosphere perhaps 200,000 years ago. Credit: NASA/JPL-Caltech
“Skylab” is about 9 meters (30 feet) in diameter. The positions of the scattered rocks relative to sand ripples suggest that Skylab is young for a Martian crater. Researchers estimate it was excavated by an impact within the past 100,000 years.
“Freedom 7” crater is about 25 meters (82 feet) in diameter. During her long overland expedition, Opportunity is examining many craters of diverse ages at distant locales to learn more about the past history of Mars and how impact craters have changed over time.
Opportunity was just positioned at a newly found rock outcrop named “Valdivia” and analyzing it with the robotic arm instruments including the Microscopic Imager and the Alpha Particle X-ray Spectrometer (APXS).
Opportunity leaves dance step on Mars
A dance-step pattern is visible in the wheel tracks near the left edge of this scene recorded in stereo by the navigation camera during Sol 2554 on Mars (April 1, 2011). The pattern comes from use of a new technique for Opportunity to autonomously check for hazards in its way while driving backwards. For scale, the distance between the parallel tracks of the left and right wheels is about 1 meter (about 40 inches). Credit: NASA/JPL-CaltechSkylab, America’s First manned Space Station
Photo taken by departing Skylab 4 crew in Feb. 1974. Credit: NASA
Space Shuttle Endeavour landed safely at the Kennedy Space Center on June 1, 2011 at 2:35 a.m. EDT. During the 16 day STS-134 mission, Endeavour delivered the $2 Billion Alpha Magnetic Spectrometer to the International Space Station and journeyed more than sixteen million miles. Endeavour was towed back to the Orbiter Processing Facility in preparation for display at her new retirement home at the California Science Center. Credit: Ken Kremer
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KENNEDY SPACE CENTER – Space Shuttle Endeavour and her six man crew landed safely today at the Kennedy Space Center in Florida at 2:35 a.m. EDT following a 16 day journey of more than sixteen million miles.
The STS-134 mission marked the end of Endeavour’s space exploration career. It was the 25th and last space mission by NASA’s youngest orbiter. Altogether, Endeavour has logged 299 days in space, orbited Earth 4,671 times and traveled 122,883,151 miles.
The crew was led by Shuttle Commander Mark Kelly. Also aboard were Pilot Greg H. Johnson and Mission Specialists Mike Fincke, Drew Feustel, Greg Chamitoff and the European Space Agency’s Roberto Vittori. Vittori is the last non NASA astronaut to fly on a shuttle mission.
The night landing capped a highly productive flight highlighted by the delivery of the $2 Billion Alpha Magnetic Spectrometer (AMS) to the International Space Station. AMS is a cosmic ray detector that seeks to unveil the invisible universe and search for evidence of dark matter, strange matter and antimatter.
5 of 6 crew members of STS-134 mission of Space Shuttle Endeavour at post landing press briefing. Credit: Ken Kremer
“What a great ending to this really wonderful mission,” said Bill Gerstenmaier, associate administrator for Space Operation at a briefing today for reporters “They’re getting great data from their instrument on board the space station. It couldn’t have gone any better for this mission.”
Mike Leinbach, the Space Shuttle Launch Director, said, “It’s been a great morning at the Kennedy Space Center. Commander Kelly and his crew are in great spirits.”
During the flight, Mike Fincke established a new record of 382 days for time a U.S. astronaut has spent in space. He broke the record on May 27, his 377th day on May 27, by surpassing previous record holder Peggy Whitson.
STS-134 was the 134th space shuttle mission and the 36th shuttle mission dedicated to ISS assembly and maintenance.
“You know, the space shuttle is an amazing vehicle, to fly through the atmosphere, hit it at Mach 25, steer through the atmosphere like an airplane, land on a runway, it is really, really an incredible ship,” said Kelly.
“On behalf of my entire crew, I want to thank every person who’s worked to get this mission going and every person who’s worked on Endeavour. It’s sad to see her land for the last time, but she really has a great legacy.”
After the landing at the Shuttle Landing Facility (SLF) , Endeavour was towed back into the Orbiter Processing Facility (OPF) where she will be cleaned and “safed” in preparation for her final resting place – Retirement and public display at the California Science Center in Los Angelos, California.
With the successful conclusion of Endeavour’s mission, the stage is now set for blastoff of the STS-135 mission on July 8, the very final flight of the three decade long shuttle Era.
“We’ve had a lot going on here,” said Mike Moses, space shuttle launch integration manager, “Being able to send Atlantis out to the pad and then go out and land Endeavour was really a combination I never expected to have.
It’s been a heck of a month in the last 4 hours !”
Shuttle Endeavour Landing Photos by Mike Deep for Universe Today
STS-134 Space Shuttle Commander Mark Kelly. Credit: Ken Kremer STS-134 Endeavour Post Landing Press Briefing.
Bill Gerstenmaier, NASA Associate Administrator for Space Operations, Mike Moses, Space Shuttle launch integration manager at NASA KSC, Mike Leinbach, Space Shuttle Launch Director at NASA KSC, laud the hard work and dedication of everyone working on the Space Shuttle program. Credit: Ken Kremer
Read my related stories about the STS-134 mission here:
A droplet of fuel burning in space, in the absence of gravity. Credit: NASA
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Dude! This awesome image looks like a psychedelic 1970’s flashback. But is is actually a droplet of fuel burning in space, on board the International Space Station. NASA explains that because of the absence of gravity, fuels burning in space behave very differently than they do on Earth. The Flame Extinguishing Experiment on board the ISS is examining the combustion of such liquid fuel droplets, and in this image, a 3-millimeter diameter droplet of heptane fuel burns in microgravity, producing soot. When a bright, uniform backlight is placed behind the droplet and flame and recorded by a video camera, the soot appears as a dark cloud. Image processing techniques can then quantify the soot concentration at each point in the image.
NASA explains:
This colorized gray-scale image is a composite of the individual video frames of the backlit fuel droplet. The bright yellow structure in the middle is the path of the droplet, which becomes smaller as it burns. Initial soot structures (in green) tend to form near the liquid fuel. These come together into larger and larger particles which ultimately spiral out of the flame zone in long, twisting streamers.
The AMS sits near the center of this graphic, which shows where the experiment is located on the truss of the ISS. Credit: NASA
The long-awaited Alpha Magnetic Spectrometer, a particle physics detector that could unlock mysteries about dark matter and other cosmic radiation, has now been installed outside the International Space Station. It is the largest and most complex scientific instrument yet on board the orbiting laboratory, and will examine ten thousand cosmic-ray hits every minute, looking for nature’s best-kept particle secrets, searching for clues into the fundamental nature of matter.
“Thank you very much for the great ride and safe delivery of AMS to the station,” said Dr. Samuel Ting, speaking via radio to the crew on orbit who installed the AMS. Ting is the AMS Principal Investigator who has worked on the project for close to 20 years. “Your support and fantastic work have taken us one step closer to realizing the science potential of AMS. With your help, for the next 20 years, AMS on the station will provide us a better understanding of the origin of the universe.”
“Thank you, Sam,” Endeavour commander Mark Kelly radioed back, “I was just looking out the window of the orbiter and AMS looks absolutely fantastic on the truss. I know you guys are really excited and you’re probably getting data and looking at it already.”
By collecting and measuring vast numbers of cosmic rays and their energies, particle physicists hope to understand more about how and where they are born, since a long-standing mystery is where cosmic rays originate. They could be created in the magnetic fields of exploded stars, or perhaps in the hearts of active galaxies, or maybe in places as yet unseen by astronomers.
The AMS is actually AMS-02 – a prototype of the instrument, AMS-01, was launched on board the space shuttle in 1998, and showed great potential. But Ting and his collaborators from around the world knew that to make a significant contribution to particle science, they needed a detector that could be in space for a long period of time.
AMS-02 will operate on the ISS until at least 2020, and hopefully longer, depending on the life of the space station.
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The AMS will also search for antimatter within the cosmic rays, and attempt to determine whether the antimatter is formed from collisions between particles of dark matter, the mysterious substance that astronomers believe may make up about 22% of the Universe.
There is also the remote chance that AMS-02 will detect a particle of anti-helium, left over from the Big Bang itself.
“The most exciting objective of AMS is to probe the unknown; to search for phenomena which exist in nature that we have not yet imagined nor had the tools to discover,” said Ting.
Several student experiments will travel with the more famous Alpha Magnetic Spectrometer-02 on the shuttle Endeavour. Image Credit: NASA.gov
[/caption]CAPE CANAVERAL – STS-134, the final flight of the space shuttle Endeavour – is set to carry several experiments of students from the middle school, high school and collegiate levels. Two of these payloads are sponsored by the NASA Florida Space Grant Consortium.
The first experiment is one that could provide some guidance on future long-duration space flight missions, it deals with seed germination. As missions take astronauts further and further away from Earth, they will need to be able to produce their own food. Learning everything possible about the effects of micro-gravity on seeds therefore is viewed as relevant and important research.
Student Spaceflight Experiments Program is working to ensure that the shuttle program maximizes its potential as a tool for education. Image Credit: SSEP
“Crystal Lake Middle Schools’ students and staff members are grateful that the Florida Space Grant Consortium has provided funding that will allow one of our student experiments to fly aboard the Space Shuttle Endeavour in low Earth orbit for 14 days,” said the Magnet Programs Coordinator for Crystal Lake Middle School, Lenecia McCrary. “The students entered a school-wide competition that involved proposing and designing real and practical experiments. The chosen experiment deals with investigating the effects of micro-gravity on apple seed germination.”
A little higher up on the educational ladder is the STEM Bar experiment being flown on STS-134. High school students Mikayla and Shannon Diesch won the 2010 Conrad Foundation Spirit of Innovation Award and will be at the launch watching as Endeavour takes their newly developed STEM Bar to the International Space Station. The STEM Bar was developed using NASA’s food safety standards and certified to fly on STS-134.
Another experiment, one comprised of squid embryos is being spearheaded by the University of Florida and will research the physiological impact of the micro-gravity environment on the animal’s growth and development.
“The Squids in Space project is a cohesive effort in which the full range of NASA Florida Space Grant Consortium supported categories work together on an experiment destined to fly on what will be the last flight of space shuttle Endeavour,” said Florida Space Grant Consortium Director Jaydeep Mukherjee. “This team, which is composed of Florida colleges and high school students and led by University of Florida PhD research scientist Jamie Foster, will connect the three tiers of education in an experiment studying the effects of microgravity on squid embryos.”
This experiment rack will allow astronauts to study how certain bacteria within squid embryos change in the microgravity environment. Photo Credit: NASA FSGC
The inclusion of these student experiments on board Endeavour is viewed by those sponsoring and supporting these student-led experiments as evidence of NASA’s commitment to educational outreach. NASA has to maximize every square inch of space on the orbiters to stock up the space station for the post-shuttle era. As such, clearing room for these experiments highlights is viewed as an expression of the high value that the space agency places on education. After the launch of Endeavour only a single shuttle flight remains in the program, STS-135 which is slated for liftoff on June 28 on space shuttle Atlantis.
Students from the University of Florida are sending squid embryos into space on space shuttle Endeavour's final mission. Photo Credit: NASA FSGC
President Obama plans to attend the last launch of Endeavour on April 29, 2011 at the Kennedy Space Center. President Obama last visited the Kennedy Space Center in Florida on April 15, 2010 and outlined the new course his administration is charting for NASA and the future of U.S. human spaceflight. Credit: NASA/Kim Shiflett
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President Barack Obama and the entire First Family apparently plan to attend the final launch of Space Shuttle Endeavour, according to government officials and multiple news outlets. Endeavour is slated to blast off on the STS-134 mission next Friday, April 29 from the Kennedy Space Center (KSC) in Florida at 3:47 p.m. EDT.
There has already been intense drama surrounding the STS-134 mission because it is being commanded by Mark Kelly. Kelly is the husband of U.S. Congresswoman Gabrielle Giffords of Arizona who was critically wounded by gunshots to her head at point blank range during an assassination attempt while attending a meet and greet with her constituents on Jan. 8, 2011. Six people – including a nine year old girl and a federal judge – were killed and a dozen more were wounded that awful day.
Space Shuttle Endeavour awaits her final launch on April 29, 2011 from Pad 39A at the Kennedy Space Center, FL Credit: Ken Kremer
The Presidents appearance at the STS-134 launch will almost certainly lead to skyrocketing interest, but has not yet been officially announced by NASA and the White House. The event is not yet listed on the presidents official schedule.
However, a tweet by the staff of Congresswoman Giffords on her official website states Obama will attend; “We are very happy that Pres. Obama is coming to Mark’s launch! This historic mission will be #Endeavours final flight.”
NASA spokesman Allard Beutel told me today, “I cannot confirm whether the president will be coming to launch next week. If he’s coming, which I can’t confirm, we are a White House agency.”
“We always welcome a visit from the President,” Beutel said.
Security is always tight at KSC during a shuttle launch. A visit by President Obama will certainly lead to even tighter security controls and even more massive traffic jams.
Giant crowds were already expected for this historic final spaceflight of Space Shuttle Endeavour, NASA’s youngest Orbiter, on her 25th mission to space.
Endeavour is carrying the $2 Billion Alpha Magnetic Spectrometer (AMS) ) on a 14-day flight to the International Space Station, a premier science instrument that will collect cosmic rays, search for dark energy, dark matter and anti matter and seeks to determine the origin of the Universe. See my photo below of the AMS from inside the Space Station Processing Facility (SSPF) at KSC with the principal investigator, Nobel Prize winner Prof. Sam Ting of MIT.
President Obama last visited KSC on April 15, 2010 and gave a major policy speech outlining his radical new human spaceflight goals for NASA. Obama decided to cancel NASA’s Project Constellation ‘Return to the Moon’ Program and the Ares 1 and Ares 5 rockets. He directed NASA to plan a mission for astronauts to visit an Asteroid by 2025 and one of the moons of Mars in the 2030’s. Obama also decided to revive the Orion crew module built by Lockheed Martin, which is now envisaged for missions beyond low earth orbit (LEO), and invest in development of new commercial space taxis such as the Dragon spacecraft by SpaceX for transporting astronaut crews to the ISS.
Spokesman Beutel said that during the April 2010 visit, “The President met with space workers.” He could not comment on details of the president’s plans for the STS-134 visit and said information would have to come from the White House.
The last time a sitting president watched a live human space launch was in 1998 when then President Bill Clinton attended the blastoff of the return to space of Astronaut and Senator John Glenn. Glenn was the first American to orbit the Earth back in 1962. Glenn’s first flight took place a little over a year after the historic first human spaceflight by Soviet Cosmonaut Yuri Gagarin on April 12, 1961- which occurred exactly 50 years ago last week.
Congresswoman Giffords is recovering from her wounds and Shuttle Commander Kelly has said that she would like to attend the STS-134 launch. But no official announcement about her attendance has been made by NASA and depends on many factors including decisions by the doctors treating her in a Houston area hospital.
The Alpha Magnetic Spectrometer (AMS) and Nobel Prize Winner and Principal Investigator Sam Ting of MIT - inside the Space Station Processing Facility at KSC. The STS-134 mission of shuttle Endeavour will deliver the AMS to the ISS. The AMS purpose is to try and determine the origin of the Universe. . Credit: Ken KremerClose up of Endeavour crew cabin, ET, SRB and astronaut walkway to the White Room. Credit: Ken Kremer
The Spirit of Innovation Award honors the memory of Pete Conrad
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The Spirit of Innovation Awards is a wonderful competition that challenges teams of high school students to create innovative products using science, technology, and entrepreneurship to solve 21st century, real-world problems. Right now, the student teams are battling for top pick this week as public voting opens in the Conrad Foundation (named in memory of Apollo astronaut Pete Conrad)Spirit of Innovation People’s Choice Awards, so check out the various teams and cast your vote. But do it now: public voting is runs only through April 17.
“Science and technology studies improve life around the globe, and expand our reach off of it,” said Pete Worden, Director of NASA Ames Research Center. “The People’s Choice Awards is an opportunity for the public to engage with student innovators demonstrating fresh and exciting developments in these fields. It gives everybody the chance to participate in a program that benefits our future.”
Conrad was commander of Apollo 12 and the third man to walk on the Moon. He had a learning disability, but went on to earn a scholarship to Princeton and lead a mission to the Moon.
This year’s People’s Choice champion will be announced Sunday, May 1 during the closing ceremonies of the 2011 Innovation Summit at NASA’s Ames Research Center. The Summit, April 28 – May 1st, is the culmination of the Spirit of Innovation Awards as the student teams present their products to entrepreneurs, scientists, and industry professionals, and compete for $5,000 Next Step Grants. The People’s Choice votes will be incorporated as 10 percent of the final judging score for these scholarships.
Last year, Team AM Rocks and its Solar Flare Nutrition Bar took home the People’s Choice Award winning title. This year the teams that garner the most People’s Choice votes in each of the challenge
categories -aerospace exploration, clean energy and cyber security -will be awarded $250. Meet this year’s teams, explore the innovations, and cast your vote for favorite, at this link.
