Posted on by Jason Major

Building the Future of Spaceflight

Here’s a very cool “music video” showing the ongoing progress being made on the Orion Multi-Purpose Crew Vehicle, the next-generation vehicle for human space travel beyond low-Earth orbit.

Although the MPCV may resemble Apollo-era capsules, its technology and capability are light years apart. The MPCV features dozens of technology advancements and innovations incorporated into the spacecraft’s subsystem and component design.

From careful assembly of the smallest parts to the dramatic tests of the rocket launch abort system, this video shows how much expertise, talent and just plain hard work is being invested in the future of human spaceflight by NASA as well as many industry-leading experts around the country!

Read more about the Orion MPCV program here.

Posted on by Jason Rhian

In Focus: Aerospace Photojournalist Mike Killian

Mike Killian is an aerospace journalist who jumped at the opportunity to cover space events at Kennedy Space Center and Cape Canaveral Air Force Station. Photos Courtesy of Mike Killian

[/caption]CAPE CANAVERAL, Fla – The photographers that cover the events that take place in and around Florida’s Space Coast come from diverse backgrounds. However, when it comes to the passion that attracts so many to Cape Canaveral Air Force Station and Kennedy Space Center – their origins are very similar.

Many amateur photographers like Mike Killian have always been interested in spaceflight, in capturing the spectacle of launch. Like Killian, these photographers start out not knowing how to get onto Kennedy Space Center to shoot the launches and other events that take place there. They work out arrangements with NASA friends to get close and then, finally, they get affiliated with an accredited news organization (in Killian’s case the ARES Institute).

“I have loved the space program since I was a child,” Killian said. “Most folks that come out here and do this I doubt very highly that they do it thinking they will get rich. They do it because what they are showing the world is so important, so awe-inspiring…and so beautiful.”

Killian caught the reflection of space shuttle Atlantis as it was towed back to its OPF after completing the final mission of the space shuttle era - STS-135. Photo Courtesy of Mike Killian

Killian has only covered the space program as a photographer for a relatively short time, about three years. During that time however – he has covered some pivotal points in space flight history. The last flights of the space shuttle era, the launch of spacecraft to Earth orbit, the Moon and soon Mars. Killian, also like his compatriots, sacrifices long hours and endures low pay to capture images of these events. But when he gets that perfect shot of solid rocket boosters separating from an Atlas V on its way to orbit, or the final landing of the space shuttle – it is all worth it.

“Photography is pretty much like anything else,” said Killian during a recent interview. “It’s all about timing – being at the right place – at the right time.”

Whether static or in dramtic motion, Killian has captured the space shuttle program's final days. Photo Courtesy of Mike Killian

One recurring theme that occurs in aerospace photography is – progression. Photographers will come out to KSC/CCAFS with their digital cameras, then they will buy a more powerful camera and then they move on to remote cameras. When one hears remote they think the cameras are far away – the truth is that these cameras are extremely close. “Remote” means that they are remotely activated – generally by either a sound or light sensor.

Killian employs 2 Canon Rebel XSi cameras due to the camera’s affordability and versatility.

The 27-year-old, unlike many of his colleagues, does have a favorite image – and it isn’t even one that he took on Kennedy Space Center proper.

Killian's favorite shot shows Launch Complex 39A in the distance, a Shuttle Training Aircraft or STA checking weather conditions - and a very active thunderstorm. Photo Courtesy of Mike Killian

“My favorite shot thus far is of a lightning storm over KSC for the night launch of Discovery on STS-128. That storm scrubbed the launch attempt, but the images I captured that night were unreal,” said Killian. “This particular photo has so much going on – Discovery basking in xenon lights atop launch pad 39A fully fueled with her crew onboard, lightning racing through the clouds directly above KSC, & the shuttle training aircraft flying over the storm (upper left of photo) on weather recon trying to determine if there would be any chance the storm could let up in time to support a launch that night. It’s very unique, not your typical launch photo.”

For Killian photographing the space program allows him to both combine his love of photography with the driving interest that he has for space flight. Killian has no plans to stop photographing the space program anytime soon. For him this is not about the money, it’s about the history of thunder and the wonder of light and like so many of his fellow photojournalists he feels privileged to be able to do what he does.

Killian has covered many different events at Kennedy Space Center. His camera has captured events as stirring as the final launch of the shuttle era - and as poignant as the final rollout of space shuttle Discovery (seen here). Images Courtesy of Mike Killian
Posted on by Tammy Plotner

Titan’s Technicolor Terrain

Global mosaic of VIMS infrared images acquired during the nominal and equinox Cassini mission. Differences in composition translate into subtle differences of colours in this mosaic, revealing the diversity of terrains on Titan, such as the brownish equatorial dune fields or the bright elevated terrains. (Colour coding : Red=5 um, Green=2.0 um, Blue=1.27 um). Credits JPL/NASA/Univ. of Arizona/CNRS/LPGNantes

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At the University of Nantes, a group of international scientists have been piecing together one of the most amazing jigsaw puzzles of all times… a color image of Saturn’s moon, Titan. For six years the Cassini mission has been busy gathering images and the resulting compilation was presented on October 4 by Stephane Le Mouelic at the 2011 EPSC-DPS Joint Meeting in Nantes, France. While it might not win the Cannes Film Festival, it’s certainly near and dear to an astronomer’s heart…

During the first seventy fly-bys of the famous Saturnian satellite, the Visual and Infrared Mapping Spectrometer (VIMS) gathered imaging records. But sewing together such a large quilt of information wasn’t an easy task. Not only does each image have to be adjusted for differences in lighting conditions, but a pixel-by-pixel match up has to occur to take atmospheric distortions into account. Titan’s methane rain and nitrogen atmosphere isn’t conducive to easy imaging and only a narrow band of infrared wavelengths allow us to take a closer look at the hidden, frozen surface. However, the results have been spectacular and little by little some very “terrestrial” features have come to light.

“As Cassini is orbiting Saturn and not Titan, we can observe Titan only once a month on average. The surface of Titan is therefore revealed year after year, as pieces of the puzzle are progressively put together.” says Le Mouelic. “Deriving a final map with no seams is challenging due to the effects of the atmosphere – clouds, mist etc. – and due to the changing geometries of observation between each flyby.”

Since 2004, Cassini has made 78 fly-bys of the exotic frozen world and another 48 are planned over the next five years. However, VIMS has had very few chances to image Titan with a high spatial resolution. While this still leaves many areas in the proverbial dark, all this can change in the future.

“We have created the maps using low resolution images as a background with the high resolution data on top. In the few opportunities where we have VIMS imagery from the closest approach, we can show details as low as 500 metres per pixel. An example of this is from the 47th flyby, which allowed the observation of the site where the Huygens descent module landed. This observation is a key one as it might help us to bridge the gap between the ground truth provided by Huygens, and ongoing global mapping from orbit, which will continue up to 2017.”

And what does the future hold? Along with updated spatial coverage, the team plans on documenting Titan’s changing seasons from both an atmospheric and surface viewpoint. Changes that are just now beginning to occur.

“Lakes in Titan’s northern hemisphere were first discovered by the RADAR instrument in 2006, appearing as completely smooth areas. However, we had to wait up to June 2010 to obtain the first infrared images of the northern lakes, emerging progressively from the northern winter darkness,” says Le Mouelic. “The infrared observations provide the additional opportunity to investigate the composition of the liquids within the lakes area. Liquid ethane has already been identified by this means.”

Fill ‘er up… We’ll be watching!

Original Story Source: Europlanet News Release. For an even more impressive look, check out the Animation of Titan Mosaic.

Posted on by Nancy Atkinson

Need an Excuse to Gaze at the Moon? International Observe the Moon Night is Coming!

This photo of the Moon was taken on October 2, 2011 in Angera, Lombardy, IT. Credit: Milo. Click image to see on Flickr.
This photo of the Moon was taken on October 2, 2011 in Angera, Lombardy, IT. Credit: Milo.

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Most of us space-minded folks don’t need an excuse to gaze upon the brightest object in the night sky – our own Moon. But just in case you need a reason or are hoping to convince some friends or family to take a look with you, there’s a special event coming up that encourages more people to take the time to take a gander at our closest and constant companion in space. Saturday, October 8, 2011 is the second annual International Observe the Moon Night (InOMN). Across the country and around the world, astronomy clubs, museums, observatories, parks, and schools will hold special events to introduce the public to the Moon. There will be telescopes to look through, activities to join, and presentations from experts in lunar science will be streamed to participating event locations.

“There will hundreds of events world-wide that will share the excitement of lunar science and explorations” said Brian Day, from the NASA Lunar Science Institute, who is one of the organizers of the event.

This photo of the Moon was taken on October 4, 2011. Credit: Amar Mainkar. Click to see the image on Flickr.

In a podcast for 365 Days of Astronomy and NLSI, Day said that right now an especially exciting time to engage the public in the Moon. (Listen to the podcast here.) A new generation of robotic probes has brought about a revolution in our understanding of our nearest neighbor in space. Our long-held view of a non-changing and dry Moon is now being replaced with an appreciation for the Moon as a dynamic body with significant deposits of water ice, a fascinating history, and a thin atmosphere that may play a role in a potential lunar water cycle. “It is indeed a New Moon!” Day said.

There’s excitement on the amateur front, as well. “Recent developments in technology have allowed amateur astronomers to image the Moon in detail that previously was only attainable from orbiting spacecraft,” Day said. “The work that they are doing and the imagery they are getting is just fantastic So, this is a great time to appreciate what is happening with the Moon on both the amateur and professional communities.”

(Thanks to amateur astronomers who have uploaded images to Universe Today’s Flickr group — the images included in this article are courtesy of Milo, Amar Mainkar and Marcopic3000.)

The overall goal for InOMN is to engage lunar science and education communities, amateur astronomers, space enthusiasts, and the general public in what has become an annual lunar observation campaign.

“The Moon will be at a favorable phase, and we are going to be able to see some really magnificent features,” Day said, “so it is a good time to show up at an International Observe the Moon Night event and take a look at what is happening in the sky.”

This image of the Moon was taken on Oct. 5, 2011. Credit: Marcopic3000. Click on image to see it on Flickr.

This year’s InOMN may provide a bit of an extra show in Europe and Northern Asia, as it is occurring on the night of the maximum of the Draconid meteor shower.

For more information and to find an InOMN event near you or to learn how to conduct your own InOMN event, visit http://www.observethemoonnight.org. The website includes information on events around the world, activities and downloadable information to allow you to host your own event, and much more.

Want to get your astrophoto featured on Universe Today? Join our Flickr group, post in our Forum or send us your images by email (this means you’re giving us permission to post them). Please explain what’s in the picture, when you took it, the equipment you used, etc.

Posted on by Nancy Atkinson

Best Evidence Yet That Comets Delivered Water for Earth’s Oceans

New measurements from the Herschel Space Observatory have discovered water with the same chemical signature as our oceans in a comet called Hartley 2 (pictured at right). Image credit: NASA/JPL-Caltech

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The idea isn’t new that Earth’s oceans originated from comets bombarding our planet back in its early days. But astronomers have now found the best evidence yet for this scenario. The Herschel infrared space observatory detected that comet Hartley 2, which originates from the distant Kuiper Belt, contains water with the same chemical signature as Earth’s oceans.

“Our results with Herschel suggest that comets could have played a major role in bringing vast amounts of water to an early Earth,” said Dariusz Lis, senior research associate in physics at the California Institute of Technology in Pasadena and co-author of a new paper in the journal Nature, published online on Oct. 5. “This finding substantially expands the reservoir of Earth ocean-like water in the solar system to now include icy bodies originating in the Kuiper Belt.”

Previous looks at various other comets showed water content different from Earth, with deuterium levels around twice that of Earth’s oceans, but those comets came from the Oort Cloud. Scientists theorized that if comets of this kind had collided with Earth, they could not have contributed more than a few percent of Earth’s water.

The Deep Impact spacecraft successfully flew past Comet Hartley 2 in November 2010 and is an example of the type of comet that the UCLA scientists describe in their research. Image: UPI/NASA/JPL-Caltech/UMD.

But Herschel’s observations of Hartley 2 are the first in-depth look at water in a comet from the Kuiper Belt — home of icy, rocky bodies that includes dwarf planets and innumerable comets — and it showed a surprising difference.

Using HIFI, a highly sensitive infrared spectrometer, Herschel peered into the comet’s coma, or thin, gaseous atmosphere, and found that Hartley 2 possessed half as much “heavy water” as other comets analyzed to date. In heavy water, one of the two normal hydrogen atoms has been replaced by the heavy hydrogen isotope known as deuterium. The ratio between heavy water and light, or regular, water in Hartley 2 is the same as the water on Earth’s surface.

“Comet Hartley’s deuterium-to-hydrogen ratio is almost exactly the same as the water in Earth’s oceans,” says Paul Hartogh, Max-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau, Germany, who led the international team of astronomers in this study.

The amount of heavy water in a comet is related to the environment where the comet formed, and by comparing the deuterium to hydrogen ratio found in the water in Earth’s oceans with that in extraterrestrial objects, astronomers were hoping to identify the origin of our water.

Astronomers know Hartley 2 comes from the Kuiper Belt, since they can track its path as it swoops into Earth’s neighborhood in the inner solar system every six-and-a-`half years. The five comets besides Hartley 2 whose heavy-water-to-regular-water ratios have been obtained all came from the Oort Cloud, an even more distant region in the solar system. This region is 10,000 times farther away than the Kuiper Belt, and is home to the most documented comets.

The team is now using Herschel to look at other Kuiper Belt comets to see whether they, too, carry the same type of water.

“Thanks to this detection made possible by Herschel, an old, very interesting discussion will be revived and invigorated,” said Göran Pilbratt, ESA Herschel Project Scientist. “It will be exciting to see where this discovery will take us.”

Paper: “Ocean-like Water in the Jupiter-family Comet 103P Hartley”

Sources: JPL, ESA

Posted on by Nancy Atkinson

Inspiration and an Old Picture Full of Awesome: Robert Goddard and His Rocket

Dr. Robert H. Goddard (second from right) and his colleagues hold a liquid-propellant rocket in 1932 at their New Mexico workshop. Credit: NASA Goddard Space Flight Center

It is difficult to say what is impossible, for the dream of yesterday is the hope of today and the reality of tomorrow.
— Dr. Robert Hutchings Goddard

It’s funny sometimes, the things that inspire you. I remember in second grade, our class read a story about Robert Goddard and I was totally captivated by this man who had a practically single-minded vision to build rockets and visit other worlds. That story was my first exposure – that I recall – to rockets and space travel and other planets, and I have to say, Robert Goddard is one of the reasons I’m a space and astronomy journalist today. I remembered that 2nd grade fascination and inspiration when I saw the above picture of Goddard and his co-horts with one of their rockets. Today is Robert Goddard’s birthday – he was born on October 5, 1882 — and in my recollections, I also remembered what inspired Robert Goddard: daydreaming while sitting in the branches of a tree.

The story goes that on October 19, 1899, he climbed into an old cherry tree to prune its dead branches. Instead, he began daydreaming.

Goddard later wrote about that day:

“It was one of the quiet, colorful afternoons of sheer beauty which we have in October in New England, and as I looked toward the fields at the east, I imagined how wonderful it would be to make some device which had even the possibility of ascending to Mars, and how it would look on a small scale, if sent up from the meadow at my feet.”

“I was a different boy when I descended the tree from when I ascended, for existence at last seemed very purposive.”

That was when a 17-year old Goddard decided to pursue the idea of spaceflight. October 19 became Goddard’s day of inspiration and he remembered that day every year, calling it “Anniversary Day,” and he noted the day in his diary as his personal holiday. In 1913, for example, he made the following to-do list:

Worcester, October 19, 1913
(Anniversary Day)

Order: complete patent application if necessary of nozzle and plurality; take out application on reloading feature; also complete application for electric pump; repeat calculation carefully, for smaller intervals; look up Darwin’s theory of the lunar motion; and look up meteors. Also try a jet.

Until that time, any type of rocket propulsion was provided by various types of gunpowder. Goddard wanted to try using a liquid fueled rocket. But in some of Goddard’s first tests of the rocket, and specifically in testing the type of jet nozzles he used, he was extremely disappointed in the nozzle’s performance: only about 2% of the available energy contributed to the speed of the jet.

Then Goddard found inspiration from an engineer named Gustav De Laval, who had developed a more efficient steam engine by designing a nozzle that was narrow at the point of entry and then expanded. This increased the speed of the jet and led to a very efficient conversion of heat energy to motion.

Using a De Laval nozzle, Goddard was able to obtain jet velocities between 7000 and 8000 ft/sec and efficiencies of up to 63%. The De Laval nozzle made Goddard’s dream of spaceflight a reality.

By 1914, Goddard had received a U.S. patent for a rocket using liquid fuel and another for a two- or three-stage rocket using solid fuel. By 1926, he and his team had constructed and successfully tested a rocket using liquid fuel, and the first-of-its-kind rocket reached an altitude of 12.5 meters (41 feet) with the flight lasting about 2 seconds. That small success was enough to inspire Goddard to go on to build more rockets. His research and achievements in rocket propulsion have formed the fundamental principles of space flight.

And Goddard wasn’t the only one who was inspired by De Laval. In the book “Rocket Boys,” which was later made into the movie “October Sky,” former NASA engineer Homer Hickam tells about his inspiration of building a rocket after seeing Sputnik fly over his backyard. He gets a group of his high school friends to help him, and they work relentlessly on building homemade rockets. The boys’ breakthrough of building a science-fair-winning rocket comes when they discover the design of the De-Laval nozzle in a book given to them by their teacher.

It’s true: we do all stand on the shoulders of giants.

Posted on by Nancy Atkinson

NASA is Looking for a Few Good Astronauts — Like You?

Could this be you one day? Credit: NASA

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NASA is looking for applicants for its next class of astronaut candidates who will support long-duration missions to the International Space Station and future deep space exploration activities.

“We hope to have a lot of interest and applications so we can have a great class in 2013,” Duane Ross of the NASA Astronaut Selection Office told Universe Today. “This is a pretty fun job.”

So, do you have the right stuff to be an astronaut in today’s changing space environment?

NASA says that a bachelor’s degree in engineering, science or math and three years of relevant professional experience are required in order to be considered. Typically, successful applicants have significant qualifications in engineering or science, or extensive experience flying high-performance jet-aircraft.

“For scientists, engineers and other professionals who have always dreamed of experiencing spaceflight, this is an exciting time to join the astronaut corps,” said Janet Kavandi, director of flight crew operations at the Johnson Space Center in Houston. “This next class will support missions to the station and will arrive via transportation systems now in development. They also will have the opportunity to participate in NASA’s continuing exploration programs that will include missions beyond low Earth orbit.”

Ross said that this upcoming class will be rather small. “The last class of 2009 we had nine NASA folks and they were joined by five international partner astronauts. I think our goal would be something in the eight to twelve range. The actual number doesn’t get decided until we know better what our requirements are and what our loses have been.”

So, how will these astronauts be trained, since the space shuttle is no longer flying and future astronauts may be flying on spacecraft that haven’t been built yet?

“For the last class we picked we actually picked them to be long duration crew members for space station. They didn’t train for the space shuttle and that is exactly what we are going to do with this class,” Ross said. “The new class will train for learning the International Space Station systems, the Russian language, spacewalk and robotics training, and several other disciplines and other things that will come online such as the MultiPurpose Crew Vehicle. For the things that mature downstream, there will be training for those when the time is right but right now we are going to concentrate on the space station.”

After applicant interviews and evaluations, NASA expects to announce the final selections in 2013, and training to begin that August.

NASA will begin accepting applications in November 2011. Additional information about the Astronaut Candidate Program is available by calling the Astronaut Selection Office at 281-483-5907.

For more information, visit:
http://astronauts.nasa.gov/

Posted on by Tammy Plotner

Looking Into The Eye Of A Monster – Active Galaxy Markarian 509

Active galaxy Markarian 509 as seen by the Hubble Space Telescope's WFPC2. Credits: NASA, ESA, J. Kriss (STScI) and J. de Plaa (SRON)

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“The world is a vampire, sent to drain… Secret destroyers, hold you up to the flames…” Ah, yes. It’s the biggest vampire of all – the supermassive black hole. In this instance, it’s not any average, garden-variety black hole, but one that’s 300 million times the mass of the Sun and growing. Bullet with butterfly wings? No. This is more a case of butterfly wings with bullets.

An international team of astronomers using five different telescopes set their sites on 460 million light-year distant Markarian 509 to check out the action surrounding its huge black hole. The imaging team included ESA’s XMM-Newton, Integral, NASA/ESA Hubble Space Telescope, NASA’s Chandra and Swift satellites, and the ground-based telescopes WHT and PARITEL. For a hundred days they monitored Markarian 509. Why? Because it is known to have brightness variations which could mean turbulent inflow. In turn, the inner radiation then drives an outflow of gas – faster than a speeding bullet.

“XMM-Newton really led these observations because it has such a wide X-ray coverage, as well as an optical monitoring camera,” says Jelle Kaastra, SRON Netherlands Institute for Space Research, who coordinated an international team of 26 astronomers from 21 institutes on four continents to make these observations.

And the vampire reared its ugly head. Instead of the previously documented 25% changes, it jumped to 60%. The hot corona surrounding the black hole was spattering out cold gas “bullets” at speeds in excess of one million miles per hour. These projectiles are torn away from the dusty torus, but the real surprise is that they are coming from an area just 15 light years away from the center. This is a lot further than most astronomers speculate could happen.

“There has been a debate in astronomy for some time about the origin of the outflowing gas,” says Kaastra.

But there’s more than just bullets here. These new observations at multiple wavelengths are showing the coolest gas in the line of sight toward Markarian 509 has 14 different velocity components – all from different locations at the galaxy’s heart. What’s more, there’s indications the black hole accretion disc may have a shield of gas harboring temperatures ranging in the millions of degrees – the motivating force behind x-rays and gamma rays.

An artist's impression of the central engine of an active galaxy. A black hole is surrounded by matter waiting to fall in. Fearsome radiation from near the black hole drives an outflow of gas. Credits: NASA and M. Weiss (Chandra X-ray Center)

“The only way to explain this is by having gas hotter than that in the disc, a so-called ‘corona’, hovering above the disc,” Jelle Kaastra says. “This corona absorbs and reprocesses the ultraviolet light from the disc, energising it and converting it into X-ray light. It must have a temperature of a few million degrees. Using five space telescopes, which enabled us to observe the area in unprecedented detail, we actually discovered a very hot ‘corona’ of gas hovering above the disc. This discovery allows us to make sense of some of the observations of active galaxies that have been hard to explain so far.”

To make things even more entertaining, the study has also found the signature of interstellar gas which may have been the result of a one-time galaxy collision. Although the evidence may be hundreds of thousands of light years away from Mrk 509, it may have initially triggered this activity.

“The results underline how important long-term observations and monitoring campaigns are to gain a deeper understanding of variable astrophysical objects. XMM-Newton made all the necessary organisational changes to enable such observations, and now the effort is paying off,” says Norbert Schartel, ESA XMM-Newton Project Scientist.

Ah, Markarian 509… “Despite all my rage… I am still just a rat in cage.”

Original Story Source: ESA News. For Further Reading: Multiwavelength Campaign on Mrk 509 VI. HST/COS Observations of the Far-ultraviolet Spectrum.