The ATV Johannes Kepler docked at the International Space Station. Credit: NASA
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ESA’s Automated Transfer Vehicle Johannes Kepler is more than just a cargo carrier for the International Space Station, it is also an on-orbit refueling station and orbit booster. On May 17-19, 2011 the Kepler ATV is scheduled to conduct its first refueling of the ISS, as it will transfer about 850.6 liters (225 gallons) of propellant for the station’s own thrusters for future boosts in orbit.
Preparations for the ISS refueling began on March 22 with a leak test of the propellant transfer lines, to ensure the connections between the ISS and ATV-2 were completely sealed; the test was a success, meaning that as of now, everything is go for the station’s refueling.
The Johannes Kepler ATV-2 approaches the International Space Station. Docking of the two spacecraft occurred on Feb. 24, 2011. Credit: NASA
In mid-March, the ATV increased the ISS’s orbit with a 882-second (14 and a half minutes) burn, giving the ISS an extra push of about 2.1 m/s. In all, Kepler brought nearly 10,000 pounds (4,500 kilograms) of propellant that has been used by its thrusters to boost the space station to a new altitude of 400 kilometers (248 miles) above the Earth. This will be the new “normal” for the station’s orbit. Previously, the ISS orbited about 350 km (220 miles) up.
The main benefit of raising the station’s altitude is to cut the amount of fuel needed to keep it there by more than half. This also means that visiting vehicles will not be able to carry as much cargo as they could if they were launching to the station at a lower altitude since they will need more fuel to reach the station, but it also means that not as much of that cargo needs to be propellant.
The orbit of the ISS degrades because Earth’s atmosphere — though tenuous at those altitudes – expands and contracts through the Sun’s influence, and there are enough molecules that contact the surfaces of its large solar array panels, the large truss structure, and pressurized modules to change its speed, or velocity, which is about 28,000 kilometers an hour (17,500 mph).
At the ISS’s old altitude, the space station uses about 19,000 pounds of propellant a year to maintain a consistent orbit. At the new, slightly higher altitude, the station is expected to expend about 8,000 pounds of propellant a year. And that will translate to a significant amount of food, water, clothing, research instruments and samples, and spare parts that can be flown on the cargo vehicles that will keep the station operational until 2020 and beyond.
Kepler also sent a breath of fresh air to the station by transferring about 8kg of oxygen to the ISS in March, which was the first re-pressurization of the ISS’s internal atmosphere conducted by Kepler.
A view the space station as Discovery approaches for docking. Credit: NASA
Lockheed Martin’s Space Operations Simulation Center in Littleton, Colorado, simulates on-orbit docking maneuvers with full-scale Orion and International Space Station mockups. The spacious center includes an 18,000 square-foot high bay area used to validate Orion’s new relative navigation system (STORRM), which will be tested on orbit during the STS-134 mission set to blast off on April19, 2011. Credit: Lockheed Martin
Lockheed Martin is aiming for a first unmanned orbital test flight of Orion as soon as 2013, said John Karas, vice president and general manager for Lockheed Martin’s Human Space Flight programs in an interview with Universe Today . The first operational flight with humans on board is now set for 2016 as stipulated in the NASA Authorization Act of 2010.
Orion manned capsule could launch in 2016 atop proposed NASA heavy lift booster from the Kennedy Space Center This Orion prototype capsule was assembled at NASA’s Michoud Assembly Facility (MAF) in New Orleans, LA and shipped by truck to Denver. At Denver, the capsule will be put through a rigorous testing program to simulate all aspects of a space mission from launch to landing and examine whether the vehicle can withstand the harsh and unforgiving environment of deep space.
Orion was originally designed to be launched by the Ares 1 booster rocket, as part of NASA’s Project Constellation Return to the Moon program, now cancelled by President Obama. The initial Orion test flight will likely be atop a Delta IV Heavy rocket, Karas told me. The first manned flight is planned for the new heavy lift rocket ordered by the US Congress to replace the Project Constellation architecture.
The goal is to produce a new, US-built manned capsule capable of launching American astronauts into space following the looming forced retirement of NASA’s Space Shuttle orbiters later this year. Thus there will be a gap of at least three years until US astronauts again can launch from US soil.
“Our nation’s next bold step in exploration could begin by 2016,” said Karas in a statement. “Orion was designed from inception to fly multiple, deep-space missions. The spacecraft is an incredibly robust, technically advanced vehicle capable of safely transporting humans to asteroids, Lagrange Points and other deep space destinations that will put us on an affordable and sustainable path to Mars.”
Jim Bray, Director, Orion Crew & Service Module, unveils the first Orion crew module to guests and media at the Lockheed Martin Space Systems Company Waterton Facility in Denver, CO. The vehicle is temporarily positioned in the composite heat shield before installation begins. Following installation of the heat shield and thermal backshell panels, the spacecraft will undergo rigorous testing to validate Orion’s ability to endure the harsh environments of deep space. Credit: Lockheed Martin
Lockheed Martin is the prime contractor for Orion under a multiyear contract awarded by NASA worth some $3.9 Billion US Dollars.
The SOSC was built at a cost of several million dollars. The 41,000 square foot facility will be used to test and validate vehicles, equipment and software for future human spaceflight programs to ensure safe, affordable and sustainable space exploration.
Mission scenarios include docking to the International Space Station, exploring the Moon, visiting an Asteroid and even journeying to Mars. Lockheed has independently proposed the exploration of several challenging deep space targets by astronauts with Orion crew vehicles which I’ll report on in upcoming features.
Orion capsule and Abort rocket mockups on display at Kennedy Space Center.
Full scale mockups of the Orion capsule and emergency abort rocket are on public display at the Kennedy Space Center Visitor Complex in Florida. Orion crew capsule mockup (at left) and Launch Abort System (LAS) at right. The emergency rocket will be bolted atop an Orion spaceship for the initial orbital test flight currently slated for 2013 launch. The LAS mockup was used in launch pad exercises at the New Mexico launch site of the LAS rocket blast-off in May 2010. Credit: Ken Kremer
The SOSC facility provides the capability for NASA and Lockheed Martin engineers to conduct full-scale motion simulations of many types of manned and robotic space missions. Demonstrations are run using laser and optically guided robotic navigation systems.
Inside the SOSC, engineers can test the performance of a vehicles ranging, rendezvous, docking, proximity operations, imaging, descent and landing systems for Earth orbiting mission as well as those to other bodies in our solar system.
“The Orion spacecraft is a state-of-the-art deep space vehicle that incorporates the technological advances in human life support systems that have accrued over the last 35 years since the Space Shuttle was designed.” says Karas. “In addition, the Orion program has recently been streamlined for additional affordability, setting new standards for reduced NASA oversight. Orion is compatible with all the potential HLLVs that are under consideration by NASA, including the use of a Delta IV heavy for early test flights.”
The Orion flight schedule starting in 2013 is however fully dependent on the level of funding which NASA receives from the Federal Government.
This past year the, Orion work was significantly slowed by large budget cuts and the future outlook is murky. Project Orion is receiving about half the funding originally planned by NASA.
And more deep cuts are in store for NASA’s budget – including both manned and unmanned projects – as both political parties wrangle about priorities as they try to pass a federal budget for this fiscal year. Until then, NASA and the entire US government are currently operating under a series of continuing resolutions passed by Congress – and the future is anything but certain.
Orion prototype crew cabin with crew hatch and windows
built at NASA Michoud Assembly Facility, New Orleans, LA. Credit: Ken KremerLockheed Martin team of aerospace engineers and technicians poses with first Orion crew cabin after welding into one piece at NASA Michoud Assembly Facility, New Orleans, LA. Credit: Ken KremerOrion and ISS simulated docking
Astronauts Steve Bowen and Alvin drew work in tandem on one of the truss sections of the ISS during the first spacewalk of the STS-133 mission. Credit: NAS
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About 100 tons of meteoroids bombard the Earth’s atmosphere every day. For spacecraft in Earth orbit, a collision with these particles could cause serious damage or catastrophic failure, and a hit on an astronaut or cosmonaut conducting extra-vehicular activities in space would be life-threatening, if not fatal. But before anyone steps outside the space shuttle or the International Space Station, NASA checks with data from Canadian Meteor Orbit Radar to determine if it’s safe.
The CMOR system consists of three identical radar systems slaved together to transmit and receive simultaneously. Credit: University of Western Ontario
Using a series of ‘smart cameras’, a one-of-a-kind triple-frequency radar system and computer modeling, CMOR provides real-time data, tracking a representative sample of the meteoroids around and approaching Earth, which are traveling at hypervelocity speeds averaging 10 km/s (22,000 mph).
The system is based at based at The University of Western Ontario.
“When it’s in orbit, the largest danger posed to the space shuttle is impact from orbital debris and meteoroids,” said Peter Brown, Western physics and astronomy professor. By knowing when meteoroid activity is high, NASA can make operational changes such as shielding vulnerable areas of the shuttle or deferring space walks so astronauts remain protected.
Brown told Universe Today that the meteoroids tracked by the system are from 0.1mm and larger, and it detects the ionization trails left by these meteoroids and not the solid particles themselves.
CMOR records about 2,500 meteoroid orbits per day by using a multi-frequency HF/VHF radar. The radar produces data on the range, angle of arrival, and velocity/orbit in some instances. In operation since 1999, the system has measured 4 million individual orbits, as of 2009.
NASA makes daily decisions based on the data from this system. Radio waves are bounced off the ionization trails of meteors by the radar, allowing the system to provide the data necessary to understand meteoric activity on a given day. “From this information we can figure out how many meteoroids are hitting the atmosphere, as well as the direction they’re coming from and their velocity,” Brown said.
NASA says the greatest challenge is medium size particles (objects with a diameter between 1 cm to 10 cm), because of how difficult they are to track, and they are large enough to cause catastrophic damage to spacecraft and satellites. Small particles less than 1 cm pose less of a catastrophic threat, but they do cause surface abrasions and microscopic holes to spacecraft and satellites.
STS-35 Space Shuttle window pit from orbital debris impact. Credit: NASA
But the radar information from the Canadian system can also be combined with optical data to provide broader information about the space environment and produce models useful during the construction of satellites. Scientists are better able to shield or protect the satellites to minimize the effect of meteoroid impacts before sending them into space.
The ISS is the most heavily shielded spacecraft ever flown, and uses “multishock” shielding, which uses several layers of lightweight ceramic fabric to act as “bumpers,” which shocks a projectile to such high energy levels that it melts or vaporizes and absorbs debris before it can penetrate a spacecraft’s walls. This shielding protects critical components such as habitable compartments and high-pressure tanks from the nominal threat of particles approximately 1 cm in diameter. The ISS also has the capability of maneuvering to avoid larger tracked objects.
The original radar system was developed for measuring winds in the Earth’s upper atmosphere, and has since been modified by Brown and his fellow researchers to be optimized for the kinds of astronomical measurements currently being used by NASA.
When the radar detects meteors, the software analyzes the data, summarizes it and sends it to NASA electronically. Brown’s role is to keep the process running and continue to develop the techniques used to obtain the information over time.
Western has been working co-operatively with NASA for 15 years, and has been involved with its Meteor Environment Office (MEO) since it was created in 2004. The role of the MEO is predominantly to evaluate risk. “Everyone knows that rocks fly through space,” says MEO head Bill Cooke. “Our job is to help NASA programs, like the space station, figure out the risk to their equipment, educate them on the environment and give them models to evaluate the risks posed to spacecrafts and astronauts.”
From folk to boogey-woogey to cute kids singing, you’ve got 10 original choices for which song should be the winner of NASA’s Space Rock contest in the Original Songs category. While I’m personally bummed that my song didn’t get chosen as a finalist, the ten choices are creative, fun and really awesome. It’s great to know that there are other songwriters out there who are passionate about space exploration, too! NASA said 1,350 original songs were submitted, including 693 from 47 states in the US, 105 from Canada, and 552 from 61 other countries. The two songs with the most votes will be the first original songs chosen by the public to be played as wakeup music for a shuttle crew, and will be played during the STS-134 mission, sending a ‘rise and shine’ to space shuttle Commander Mark Kelly and his five crewmates during their mission to the International Space Station. Voting runs from Tuesday, March 29 through launch day, which currently is targeted for April 19.
Listen to the songs and vote at the Space Rock webpage.
And you can still participate in the “Face in Space” project, which allows you to send a picture to space via an electronic transfer. During Discovery’s mission, more than 194,000 images flew in space. So far, almost 117,000 images have been submitted to fly aboard shuttle Endeavour’s STS-134 flight. To send your face to space aboard Endeavour, or Atlantis on the STS-135 mission targeted for June, visit the Face in Space Website.
Stardust-NExT photographed jets of gas and particles streaming from Comet Tempel 1 during Feb 14, 2011 flyby. The raw image taken during closest approach has been extensively enhanced by outside analysts to visibly show the jets. Annotations show the location of the jets and the man-made crater created by a projectile hurled by NASA’s prior Deep Impact mission in 2005. Credit: NASA/JPL-Caltech/University of Maryland/Post process and annotations by Marco Di Lorenzo/Kenneth Kremer
[/caption]Farewell Stardust-NExT !
Today marks the end to the final chapter in the illustrious saga of NASA’s Stardust-NExT spacecraft, a groundbreaking mission of cometary exploration.
Mission controllers at NASA’s Jet Propulsion Laboratory commanded the probe to fire the main engines for the very last time today at about 7 p.m. EDT (March 24). The burn will continue until the spacecraft entirely depletes the tiny amount of residual fuel remaining in the propellant tanks. The Stardust probe is now being decommissioned and is about 312 million kilometers away from Earth.
This action will effectively end the life of the storied comet hunter, which has flown past an asteroid (Annefrank), two comets (Wild 2 and Tempel 1) and also returned the first ever pristine samples of a comet to Earth for high powered analysis by the most advanced science instruments available to researchers.
NASA’s Stardust space probe completed her amazing science journey on Feb. 14, 2011 by streaking past Comet Tempel 1 at 10.9 km/sec, or 24,000 MPH and successfully sending back 72 high resolution images of the comets nucleus and other valuable science data. Tempel 1 became the first comet to be visited twice by spacecraft from Earth.
During the Feb. 14, 2011 flyby of Comet Tempel 1, Stardust-NExT discovered the man-made crater created back in 2005 by NASA’s Deep Impact mission and also imaged gas jets eminating from the comet. My imaging partner Marco Di Lorenzo and myself prepared two posters illustrating the finding of the jets and the Deep Impact crater included in this article.
6 Views of Comet Tempel 1 and Deep Impact crater from Stardust-NExT spacecraft flyby on Feb. 14, 2011. Arrows show location of man-made crater created in 2005 by NASA’s prior Deep Impact comet smashing mission and newly imaged as Stardust-NExT zoomed past comet in 2011.
The images progress in time during closest approach to comet beginning at upper left and moving clockwise to lower left. Credit: NASA/JPL-Caltech/University of Maryland/Post process and annotations by Marco Di Lorenzo/Kenneth Kremer
The rocket burn will be the last of some 2 million rocket firings all told since the Stardust spacecraft was launched back in 1999. Over a dozen years, Stardust has executed 40 major flight path maneuvers and traveled nearly 6 billion kilometers.
The rocket firing also serves another purpose as a quite valuable final contribution to science. Since there is no fuel gauge on board or precise method for exactly determining the quantity of remaining fuel, the firing will tell the engineers how much fuel actually remains on board.
To date the team has relied on several analytical methods to estimate the residual fuel. Comparing the results of the actual firing experiment to the calculations derived from estimates will aid future missions in determining a more accurate estimation of fuel consumption and reserves.
“We call it a ‘burn to depletion,’ and that is pretty much what we’re doing – firing our rockets until there is nothing left in the tank,” said Stardust-NExT project manager Tim Larson of NASA’s Jet Propulsion Laboratory in Pasadena, Calif in a statement. “It’s a unique way for an interplanetary spacecraft to go out. Essentially, Stardust will be providing us useful information to the very end.”
Just prior to the burn, Stardust will turn its medium gain antenna towards Earth and transmit the final telemetry in real time. Stardust is being commanded to fire the thrusters for 45 minutes but the team expects that there is only enough fuel to actually fire for up to perhaps around ten minutes.
On March 24, at about 4 p.m. PDT, four rocket motors on NASA's Stardust spacecraft, illustrated in this artist's concept, are scheduled to fire until the spacecraft's fuel is depleted. Image credit: NASA/JPL-Caltech
As its final act, the transmitters will be turned off (to prevent accidental transmissions to other spacecraft), all communications will cease and that will be the end of Stardust’s life.
With no more fuel available, the probe cannot maintain attitude control, power its solar array or point its antenna. And its far enough away from any targets that there are no issues related to planetary protection requirements.
“I think this is a fitting end for Stardust. It’s going down swinging,” Larson stated in the press release.
Read more about the Stardust-NExT Flyby and mission in my earlier stories here, here, here, here, here, here and here
Relive the Feb. 14 Flyby of Comet Tempel 1 in this movie of NASA/JPL images
Stardust-NExT: 2 Comet Flybys with 1 Spacecraft.
Stardust-NExT made history on Valentine’s Day - February, 14, 2011 – Tempel 1 is the first comet to be visited twice by spacrecraft from Earth. Stardust has now successfully visited 2 comets and gathered science data: Comet Wild 2 in 2004 (left) and Comet Tempel 1 in 2011 (right).
Artist renderings Credit: NASA. Collage: Ken Kremer.Stardust-NExT location on March 11, 2011 just prior to farewell transmission. Credit: NASA/JPL
The second edition of "How Apollo Flew To The Moon" is set to be released this summer. Image Credit: Springer/Praxis
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Apollo: the name conjures up images of spacesuit-clad astronauts riding fantastic machines to the surface of another world. But when it comes to the brass tacks, the mechanics of how it was accomplished – the image gets a little fuzzy.
It is with that in mind that author, engineer and historian David Woods has written: How Apollo Flew to the Moon. Now while this book is written by someone that has sat down with those involved with the Apollo Program and is an engineer himself – it doesn’t read that way. This appears to be one of Woods’ key considerations from the outset.
“I believe that the essential elements of any technology can be understood by any reasonably intelligent person, provided that the words can be found to explain it,” said Woods during an interview regarding the second edition of his book which was recently released. “This was the basis for this book. There’s no point in getting into the function of every electronic component or each equation used to describe a trajectory to the Moon, but I could see no reason why a person couldn’t come to understand the broad sweep of a mission and the many layers of technology and procedure that went into one.”
Many books that cover the Apollo Program delve a little too deeply into the technical aspects that made man’s first journey to another world possible. Novices, or those without engineering degrees get quickly bored and the books find themselves warming shelves.
How Apollo Flew To The Moon defeats this problem by breaking the technical hurdles, accomplishments and other aspects of the missions into bite-sized segments. It also avoids engineer-speak, explaining points in easy-to-understand language. It also is filled with color and black-and-white images as well as diagrams that explain how things happened, why other things were selected (and others weren’t) and so on.
The first edition of the book can be found on Amazon.com for around $30, whereas the newly updated second edition will set you back around $44.95. Given the attention to detail that is contained within this tome – it is well worth the additional cost to pick up the newer edition. How Apollo Flew To The Moon, second edition, is available for preorder from Amazon.com and other outlets. The book is scheduled to be released this summer.
“The book’s initial reception has been fantastic and I have been deeply humbled by folk’s kind words about it since it first came out,” Woods said. “The second edition is nearly ready and it expands on what was written in the first edition. At over 500 pages, it will be 25 percent larger with more color photographs throughout. There are additional stories of Apollo’s engineering triumphs both on the surface of the Moon as well as in flight, much of which reflects my continuing journey into the technical achievement that was Apollo.”
The first edition cover of "How Apollo Flew To The Moon." Image Credit: Springer/Praxis
Virtual Vesta. Taking their best guess, the science team on NASA’s Dawn Asteroid Orbiter have created a series of still images and videos (see below) to simulate what the protoplanet Vesta might look like. The exercise was carried out by mission planners at NASA's Jet Propulsion Laboratory and science team members at the German Aerospace Center and the Planetary Science Institute. Image credit: NASA/JPL-Caltech/ESA/UCLA/DLR/PSI/STScI/UMd
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The excitement is building as NASA’s innovative Dawn spacecraft closes in on its first protoplanetary target, the giant asteroid Vesta, with its camera eyes now wide open. The probe is on target to become the first spacecraft from Earth to orbit a body in the main asteroid belt and is set to arrive about four months from now in late July 2011.
Vesta is the second most massive object in the Asteroid Belt between Mars and Jupiter (map below). Since it is also one of the oldest bodies in our Solar System, scientists are eager to study it and search for clues about the formation and early history of the solar system. Dawn will spend about a year orbiting Vesta. Then it will fire its revolutionay ion thrusters and depart for Ceres, the largest asteroid in our solar system.
Dawn is equipped with three science instruments to photograph and investigate the surface mineralogy and elemental composition of the asteroid. The instruments were provided by the US, Germany and Italy. The spacecraft has just awoken from a six month hibernation phase. All three science instruments have been powered up and reactivated.
Dawn will image about 80 percent of Vesta’s surface at muliple angles with the onboard framing cameras to generate topographical maps. During the year in orbit, the probe will adjust its orbit and map the protoplanet at three different and decreasing altitudes between 650 and 200 kilometers, and thus increasing resolution. The cameras were provided and funded by Germany.
To prepare for the imaging campaign, mission planners from the US and Germany conducted a practice exercise to simulate the mission as though they were mapping Vesta. The effort was coordinated among the science and engineering teams at NASA’s Jet Propulsion Laboratory, the Institute of Planetary Research of the German Aerospace Center (DLR) in Berlin and the Planetary Science Institute in Tuscon, Ariz.
Simulated Vesta from the South Pole
This image shows the scientists' best guess to date of what the surface of the protoplanet Vesta might look like from the south pole, as projected onto a sphere 250 kilometers (160 miles) in radius. It was created as part of an exercise for NASA's Dawn mission involving mission planners at NASA's Jet Propulsion Laboratory and science team members at the Planetary Science Institute in Tuscon, Ariz. Credit: NASA/JPL-Caltech/UCLA/PSI
“We won’t know what Vesta really looks like until Dawn gets there,” said Carol Raymond in a NASA statement. Raymond is Dawn’s deputy principal investigator, based at JPL, who helped orchestrate the activity. “But we needed a way to make sure our imaging plans would give us the best results possible. The products have proven that Dawn’s mapping techniques will reveal a detailed view of this world that we’ve never seen up close before.”
Two teams worked independently and used different techniques to derive the topographical maps from the available data sets. The final results showed only minor differences in spatial resolution and height accuracy.
Using the best available observations from the Hubble Space Telescope and ground based telescopes and computer modeling techniques, they created maps of still images and a rotating animation (below) showing their best guess as to what Vesta’s surface actually looks like. The maps include dimples, bulges and craters based on the accumulated data to simulate topography and thus give a sense of Virtual Vesta in three dimensions (3 D).
“Working through this exercise, the mission planners and the scientists learned that we could improve the overall accuracy of the topographic reconstruction, using a somewhat different observation geometry,” said Nick Mastrodemo, Dawn’s optical navigation lead at JPL. “Since then, Dawn science planners have worked to tweak the plans to implement the lessons of the exercise.”
Dawn launch on September 27, 2007 by a Delta II rocket from Cape Canaveral Air Force Station, Florida. Credit: Ken KremerOf course no one will know how close these educated guesses come to matching reality until Dawn arrives at Vesta.
The framing camera system consists of two identical cameras developed and built by the Max Planck Institute for Solar System Research, Katlenburg-Lindau, Germany and the German Aerospace Center (DLR) in Berlin.
“The camera system is working flawlessly. The dry run was a complete success,” said Andreas Nathues, lead investigator for the framing camera at the Max Planck Institute in Katlenburg-Lindau, Germany.
Since the probe came out of hibernation, the mechanical and electrical components were checked out in mid March and found to be in excellent health and the software was updated.
Dawn is a mission of many firsts.
Dawn spacecraft under construction in Cleanroom.
Picture shows close up view of two science instruments;
The twin Framing Cameras at top (white rectangles) and VIR Spectrometer at right. Credit: Ken Kremer The spacecraft is NASA’s first mission specifically to the Asteroid Belt. It will become the first mission to orbit two solar system bodies.
The revolutionary Dawn mission is powered by exotic ion propulsion which is vastly more efficient than chemical propulsion thrusters. Indeed the ability to orbit two bodies in one mission is only enabled via the use of the ion engines fueled by xenon gas.
Vesta and Ceres are very different worlds that orbit between Mars and Jupiter. Vesta is rocky and may have undergone volcanism whereas Ceres is icy and may even harbor a subsurface ocean conducive to life.
Dawn will be able to comparatively investigate both celestial bodies with the same set of science instruments and try to unlock the mysteries of the beginnings of our solar system and why they are so different.
Dawn is part of NASA’sDiscovery program and was launched in September 2007 by a Delta II rocket from Cape Canaveral Air Force Station, Florida.
Virtual Vesta in 2 D.
This image shows a model of the protoplanet Vesta, using scientists' best guess to date of what the surface of the protoplanet might look like. The images incorporate the best data on dimples and bulges of Vesta from ground-based telescopes and NASA's Hubble Space Telescope. The cratering and small-scale surface variations are computer-generated, based on the patterns seen on the Earth's moon, an inner solar system object with a surface appearance that may be similar to Vesta. Credit: NASA/JPL-Caltech/UCLA/PSIVirtual Vesta in 3 D.
This anaglyph -- best viewed through red-blue glasses -- shows a 3-D model of the protoplanet Vesta, using scientists' best guess to date of what the surface of the protoplanet might look like. Image credit: NASA/JPL-Caltech/UCLA/PSI Dawn Spacecraft current location approaching Asteroid Vesta on March 21, 2011
Cover of Augustine Commision Report. We're still seeking a human spaceflight program
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Over at Space Politics, Jeff Foust points out that a provision for an independent study about human spaceflight was quietly included in last year’s NASA authorization act. The parameters of such a study would be similar to the decadal surveys done by the astronomy and planetary science disciplines. Foust reports that last week such a concept for human spaceflight was debated at a small conference where NASA’s Phil McAlister from the Office of Program Analysis and Evaluation said, “I believe in this Academies-like study that will allow the human spaceflight community to come together, like the science community has done for years and years, effectively. With that kind of document and blueprint… then finally, maybe, we can get the long-term consensus required to actually finish one of these programs. That is my sincere hope.”
Would such a study be helpful in giving U.S. human spaceflight unwavering direction and goals that don’t change with each presidential administration?
The debate is continuing in the comment section on Foust’s article and on Twitter, and so far the lines are divided between this being a good idea or one that would never work for human spaceflight.
Some comments suggest this type of survey would be just another exercise on paper that will accomplish nothing – and would be a repeat of the Stafford Report or the Augustine Commission, where programs and direction is suggested, but since it isn’t “law” politicians would ignore it in favor of projects in their own districts.
Others said there isn’t a strong figure in human spaceflight, such as a Steve Squyres who led the recent planetary decadal survey (although someone suggested Wayne Hale or Bill Gerstenmaier).
On the other side of the debate, still others said that some kind of consensus review is needed in order to direct NASA’s priorities with human space flight, as there has been no clear sustainable direction since the decision to build the ISS. Someone suggested this would be helpful for the international partner, as well, to know what NASA might do next.
What are your views – would a decadal survey for US human spaceflight be a good idea?
Iran’s Fars News Agency revealed that the country has built an unmanned flying saucer, named “Zohal” (Saturn in Persian) which will be used for various missions including aerial imaging. UPDATE: thanks to reader Robert McCelland, we now have an actual picture of the Zohal instead of the hoaky flying saucer image that was included in the Fars article (see below). It is not really all that big — more like a remote controlled toy helicopter — but reportedly the Zohal is equipped with an auto-pilot system, GPS and two separate imaging systems with full HD 10 mega-pixel picture quality and is able to take and send images simultaneously. It was unveiled in a ceremony attended by Supreme Leader of the Islamic Revolution Ayatollah Seyed Ali Khamenei at an exhibition of strategic technologies.
No detailed specifications were supplied such as exact size and flight capabilities, (except that it can fly vertically) but the report said it could fly both indoors and outside.
The craft was designed and developed jointly by Farnas Aerospace Company and Iranian Aviation and Space Industries Association (IASIA).
The original image on the Fars site:
This image accompanied a news article in Iran about the country's own flying saucer.
50 years ago, April 12th, Yuri Gagarin became the world’s first human to go into space. What did he see? He described it fairly well, but there are limited pictures and no video from his time in orbit. Now, through a unique collaboration between a filmmaker and ESA astronaut Paolo Nespoli on board the International Space Station, high definition video of what Gagarin might have seen has been woven together with historic recordings of the flight (subtitled in English) to create a new, free film that will be released on the 50th anniversary titled First Orbit. Above is the trailer for the film. What a perfect way to celebrate this historic moment.
“Circling the Earth in my orbital spaceship I marveled at the beauty of our planet. People of the world, let us safeguard and enhance this beauty — not destroy it!” — Yuri Gagarin.
