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Immune cells to be tested on the International Space Station
on Sat, 19 Apr 2014 09:00:26 EDT:
The human body is fine-tuned to Earth's gravity. Scientists are now conducting an experiment on the International Space Station (ISS) to study whether this also applies to human cells. We know the effect of gravity on muscles, bones and joints inside out; it has been studied extensively in medicine for centuries. For a long time, however, exactly how gravity affects the cells remained a mystery.
SpaceX-3 launches science cargo to International Space Station
on Fri, 18 Apr 2014 21:26:43 EDT:
A SpaceX Dragon spacecraft full of NASA cargo, experiments and equipment blazed into orbit Friday, April 18, aboard the company's Falcon 9 rocket. The astronauts aboard the International Space Station will unload the supplies after the Dragon arrives at the orbiting research laboratory.
Impact glass from asteroids and comets stores biodata for millions of years
on Fri, 18 Apr 2014 14:11:15 EDT:
Bits of plant life encapsulated in molten glass by asteroid and comet impacts millions of years ago give geologists information about climate and life forms on the ancient Earth. Scientists exploring large fields of impact glass in Argentina suggest that what happened on Earth might well have happened on Mars millions of years ago. Martian impact glass could hold traces of organic compounds.
Bright points in sun's atmosphere mark patterns deep in its interior
on Thu, 17 Apr 2014 19:17:44 EDT:
Like a balloon bobbing along in the air while tied to a child's hand, a tracer has been found in the sun's atmosphere to help track the flow of material coursing underneath the sun's surface.
Vitamin B3 might have been made in space, delivered to Earth by meteorites
on Thu, 17 Apr 2014 19:17:42 EDT:
Ancient Earth might have had an extraterrestrial supply of vitamin B3 delivered by carbon-rich meteorites, according to a new analysis. The result supports a theory that the origin of life may have been assisted by a supply of key molecules created in space and brought to Earth by comet and meteor impacts.
First potentially habitable Earth-sized planet confirmed by Gemini and Keck observatories
on Thu, 17 Apr 2014 14:19:46 EDT:
The first Earth-sized exoplanet orbiting within the habitable zone of another star has been confirmed by observations with both the W. M. Keck Observatory and the Gemini Observatory. The initial discovery, made by NASA's Kepler Space Telescope, is one of a handful of smaller planets found by Kepler and verified using large ground-based telescopes. It also confirms that Earth-sized planets do exist in the habitable zone of other stars.
A cross-section of the universe
on Thu, 17 Apr 2014 12:44:00 EDT:
An image of a galaxy cluster gives a remarkable cross-section of the universe, showing objects at different distances and stages in cosmic history. They range from cosmic near neighbors to objects seen in the early years of the universe. The 14-hour exposure shows objects around a billion times fainter than can be seen with the naked eye.
Red moon at night: Stargazer's delight
on Wed, 16 Apr 2014 16:26:28 EDT:
Monday night's lunar eclipse proved just as delightful as expected to those able to view it. On the East Coast, cloudy skies may have gotten in the way, but at the National Science Foundation's National Optical Astronomy Observatory near Tucson, Ariz., the skies offered impressive viewing.
Mars: Meteorites yield clues to Red Planet's early atmosphere
on Wed, 16 Apr 2014 14:33:46 EDT:
Geologists analyzed 40 meteorites that fell to Earth from Mars to understand the history of the Martian atmosphere. Their new article shows the atmospheres of Mars and Earth diverged in important ways early in the solar system's 4.6 billion year evolution.
A study in scarlet: Hot newborn stars formed out of the clouds
on Wed, 16 Apr 2014 09:04:33 EDT:
An area of the southern sky, in the constellation of Centaurus (The Centaur), is home to many bright nebulae, each associated with hot newborn stars that formed out of the clouds of hydrogen gas. The intense radiation from the stellar newborns excites the remaining hydrogen around them, making the gas glow in the distinctive shade of red typical of star-forming regions.
Astronomers: 'Tilt-a-worlds' could harbor life
on Tue, 15 Apr 2014 15:37:39 EDT:
A fluctuating tilt in a planet's orbit does not preclude the possibility of life, according to new research. In fact, sometimes it may help. That's because such "tilt-a-worlds," as astronomers sometimes call them -- turned from their orbital plane by the influence of companion planets -- are less likely than fixed-spin planets to freeze over, as heat from their host star is more evenly distributed.
Dragon cargo craft launch scrubbed; Station crew preps for spacewalk
on Tue, 15 Apr 2014 08:30:53 EDT:
Monday's launch attempt of the SpaceX Dragon cargo craft, loaded with nearly 5,000 pounds of supplies for the International Space Station's Expedition 39 crew, was scrubbed due to a helium leak on the Falcon 9 first stage. The next launch opportunity would be Friday, April 18 at 3:25 p.m. EDT if the issue can be resolved.
NASA Cassini images may reveal birth of a Saturn moon
on Mon, 14 Apr 2014 18:03:58 EDT:
NASA's Cassini spacecraft has documented the formation of a small icy object within the rings of Saturn that may be a new moon, and may also provide clues to the formation of the planet's known moons.
Cosmic slurp: Supercomputers help astronomers understand and predict how black holes swallow stars
on Mon, 14 Apr 2014 15:08:48 EDT:
A 'tidal disruption' occurs when a star orbits too close to a black hole and gets usurped. Researchers are using supercomputers to simulate tidal disruptions to better understand the dynamics of the process. Doing so will help astronomers find many more possible candidates of tidal disruptions in sky surveys and reveal details of how stars and black holes interact.
SpaceX’s Dragon headed to space station to create astronaut farmers
on Mon, 14 Apr 2014 10:33:10 EDT:
"Enter the Dragon" takes on a whole new meaning this month as SpaceX's Dragon capsule heads to the International Space Station for its third commercial resupply mission on April 14. During the SpaceX-3 mission, the Dragon capsule not only will deliver cargo to the orbiting laboratory, but it also will return science samples and hardware to Earth.
International Space Station to beam video via laser back to Earth
on Mon, 14 Apr 2014 10:30:12 EDT:
A team of about 20 working at NASA's Jet Propulsion Laboratory in Pasadena, Calif., through the lab's Phaeton early-career-hire program, led the development of the Optical Payload for Lasercomm Science (OPALS) investigation, which is preparing for an April 14 launch to the International Space Station aboard the SpaceX-3 mission. The goal? NASA's first optical communication experiment on the orbital laboratory.
Protein crystal experiment set to fly to International Space Station
on Mon, 14 Apr 2014 09:17:39 EDT:
A biology professor’s experiment that is set to fly to the International Space Station (ISS) could shed new light on the roles enzymes play in biological processes. The experiment, Protein Crystals for Neutron Crystallography (PC4NC), studies an enzyme inorganic pyrophosphatase (IPPase).
Faraway moon or faint star? Possible exomoon found
on Sat, 12 Apr 2014 09:41:04 EDT:
Titan, Europa, Io and Phobos are just a few members of our solar system's pantheon of moons. Are there are other moons out there, orbiting planets beyond our sun? Researchers have spotted the first signs of an "exomoon," and though they say it's impossible to confirm its presence, the finding is a tantalizing first step toward locating others. The discovery was made by watching a chance encounter of objects in our galaxy, which can be witnessed only once.
NASA's Hubble extends stellar tape measure 10 times farther into space
on Fri, 11 Apr 2014 09:19:43 EDT:
Astronomers now can precisely measure the distance of stars up to 10,000 light-years away -- 10 times farther than previously possible. Astronomers have developed yet another novel way to use the 24-year-old space telescope by employing a technique called spatial scanning, which dramatically improves Hubble's accuracy for making angular measurements. The technique, when applied to the age-old method for gauging distances called astronomical parallax, extends Hubble's tape measure 10 times farther into space.
Microgravity research helping to understand the fungi within
on Thu, 10 Apr 2014 10:39:23 EDT:
You may not recognize it by name, but if you have ever had a child with a diaper rash, that child was likely a host to Candida albicans (C. albicans). This unwelcome "guest" can be hard to control, as it can potentially lead to serious illness in humans with weakened immune systems. During an investigation dubbed "Microbe," using the unique microgravity environment aboard space shuttle Atlantis on an International Space Station mission, researchers gained a better understanding of these prevalent fungi. Their tendency to become more aggressive in microgravity helps scientists see what mechanisms control the behavior of these types of organisms, with the potential to develop ways to influence their behavior both in space and on Earth.
Mars: Gusev Crater once held a lake after all, scientist says
on Wed, 09 Apr 2014 15:57:44 EDT:
Evidence for an ancient 'Lake Gusev' on Mars has come and gone several times. That lake is looking pretty good today, thanks to new research. New research suggests floodwaters entered the crater through the huge valley that breaches Gusev's southern rim. These floods appear to have ponded long enough to alter the tephra, producing briny solutions. When the brines evaporated, they left behind residues of carbonate minerals. As the lake filled and dried, perhaps many times in succession, it loaded Comanche and its neighbor rocks with carbonates.
Recycling astronaut urine for energy and drinking water
on Wed, 09 Apr 2014 10:34:09 EDT:
On the less glamorous side of space exploration, there's the more practical problem of waste -- in particular, what to do with astronaut pee. But rather than ejecting it into space, scientists are developing a new technique that can turn this waste burden into a boon by converting it into fuel and much-needed drinking water. Their report could also inspire new ways to treat municipal wastewater.
Chance meeting creates celestial diamond ring
on Wed, 09 Apr 2014 09:42:28 EDT:
Astronomers have captured an eye-catching image of planetary nebula PN A66 33 -- usually known as Abell 33. Created when an aging star blew off its outer layers, this beautiful blue bubble is, by chance, aligned with a foreground star, and bears an uncanny resemblance to a diamond engagement ring. This cosmic gem is unusually symmetric, appearing to be almost circular on the sky.
Images from NASA Mars rover include bright spots
on Tue, 08 Apr 2014 21:51:22 EDT:
Images taken by NASA's Curiosity Mars rover on April 2 and April 3 include bright spots, which might be due to the sun glinting off a rock or cosmic rays striking the camera's detector.
North America to experience total lunar eclipse
on Tue, 08 Apr 2014 21:36:21 EDT:
When people in North America look up at the sky in the early morning hours of April 15, they can expect the moon to look a little different. A total lunar eclipse is expected at this time, a phenomenon that occurs when the Earth, moon and sun are in perfect alignment, blanketing the moon in the Earth's shadow.
Saturn's hexagon: An amazing phenomenon
on Tue, 08 Apr 2014 07:48:27 EDT:
An unusual structure with a hexagonal shape surrounding Saturn's north pole was spotted on the planet for the first time thirty years ago. Nothing similar with such a regular geometry had ever been seen on any planet in the solar system. Astronomers have now been able to study and measure the phenomenon and, among other achievements, establish its rotation period. What is more, this period could be the same as that of the planet itself. Saturn is the only planet in the solar system whose rotation time remains unknown.
BOSS quasars track the expanding universe: Most precise measurement yet
on Mon, 07 Apr 2014 14:37:15 EDT:
Scientists have made novel measurements of the structure of the universe when it was only about 3 billion years old, using quasars collected by the Baryon Oscillation Spectroscopic Survey (BOSS). Results include the most precise measurement of expansion since galaxies formed. BOSS, the largest component of the third Sloan Digital Sky Survey, pioneered the use of quasars to chart universal expansion and the role of dark energy.
Tracking the transition of early-universe quark soup to matter-as-we-know-it
on Fri, 04 Apr 2014 13:58:56 EDT:
By smashing together ordinary atomic nuclei at the Relativistic Heavy Ion Collider, scientists recreate the primordial soup of the early universe thousands of times per second. Using sophisticated detectors to track what happens as exotic particles emerge from the collision zone and ‚Äúfreeze out‚ÄĚ into more familiar forms of matter, they are turning up interesting details about how the transition takes place.
Watching for a black hole to gobble up a gas cloud: Gas cloud's fate illuminates growth of supermassive black holes
on Fri, 04 Apr 2014 08:58:07 EDT:
G2, a doomed gas cloud, is edging closer to Sgr A*, the hungry supermassive black hole at the Milky Way's center. The closest approach between the two is predicted to occur any day now. Astrophysicists have been watching closely, and the data do not show enhanced emission in the X-rays.
Gravity measurements confirm subsurface ocean on Saturn's moon Enceladus
on Thu, 03 Apr 2014 14:20:19 EDT:
In 2005, NASA's Cassini spacecraft sent pictures back to Earth depicting an icy Saturnian moon spewing water vapor and ice from fractures, known as "tiger stripes," in its frozen surface. It was big news that tiny Enceladus -- a mere 500 kilometers in diameter -- was such an active place. Since then, scientists have hypothesized that a large reservoir of water lies beneath that icy surface, possibly fueling the plumes. Now, using gravity measurements collected by Cassini, scientists have confirmed that Enceladus does in fact harbor a large subsurface ocean near its south pole, beneath those tiger stripes.
Monster 'El Gordo' galaxy cluster is bigger than thought
on Thu, 03 Apr 2014 14:18:31 EDT:
Astronomers have weighed the largest known galaxy cluster in the distant universe and found that it definitely lives up to its nickname: El Gordo (Spanish for "the fat one"). By precisely measuring how much the gravity from the cluster's mass warps images of far-more-distant background galaxies, a team of astronomers has calculated the cluster's mass to be as much as 3 million billion times the mass of our Sun. The Hubble data show that the cluster is roughly 43 percent more massive than earlier estimates based on X-ray and dynamical studies of the unusual cluster.
Meet space station’s small satellite launcher suite
on Thu, 03 Apr 2014 13:49:41 EDT:
It used to be that building and launching a working satellite was an enormously expensive and complex undertaking, feasible only for governmental and military agencies. But the CubeSat revolution of the past decade has placed satellite technology within reach of private companies, universities and even unaffiliated individuals. That revolution has been boosted by the existence of the International Space Station, which provides an additional launching platform enabled through regular commercial cargo flights.
Fermi data tantalize with new clues to dark matter: Gamma rays from center of Milky Way galaxy
on Thu, 03 Apr 2014 12:36:28 EDT:
A new study of gamma-ray light from the center of our galaxy makes the strongest case to date that some of this emission may arise from dark matter, an unknown substance making up most of the material universe. Using publicly available data from NASA's Fermi Gamma-ray Space Telescope, independent scientists at the Fermi National Accelerator Laboratory (Fermilab), the Harvard-Smithsonian Center for Astrophysics (CfA), the Massachusetts Institute of Technology (MIT) and the University of Chicago have developed new maps showing that the galactic center produces more high-energy gamma rays than can be explained by known sources and that this excess emission is consistent with some forms of dark matter.
Ancient volcanic explosions shed light on Mercury's origins
on Wed, 02 Apr 2014 15:36:25 EDT:
The surface of Mercury crackled with volcanic explosions for extended periods of the planet's history, according to a new analysis. The findings are surprising considering Mercury wasn't supposed to have explosive volcanism in the first place, and they could have implications for understanding how Mercury formed.
To boldly go? Experts issue ethics guidelines for health standards on NASA's next generation of risky missions
on Wed, 02 Apr 2014 14:42:52 EDT:
Scientists have issued a report with ethics principles and guidelines to aid NASA in decision-making for longer, higher risk human spaceflights. Such missions, including extended stays on the International Space Station and flights to Mars, have higher risks and are unlikely to meet the space agency's current health standards.
Regolith of small asteroids formed by thermal fatigue
on Wed, 02 Apr 2014 13:39:53 EDT:
The centimeter-sized fragments and smaller particles that make up the regolith -- the layer of loose, unconsolidated rock and dust -- of small asteroids is formed by temperature cycling that breaks down rock in a process called thermal fatigue, according to a new article.
'Geologic clock' helps determine moon's age
on Wed, 02 Apr 2014 13:39:39 EDT:
Planetary scientists have determined that the moon formed nearly 100 million years after the start of the solar system, according to a new article. This conclusion is based on measurements from the interior of the Earth combined with computer simulations of the protoplanetary disk from which the Earth and other terrestrial planets formed.
Galactic serial killer: Galaxy engulfed several other galaxies in its violent history
on Wed, 02 Apr 2014 09:58:46 EDT:
A new image shows two contrasting galaxies: NGC 1316, and its smaller neighbor NGC 1317. These two are quite close to each other in space, but they have very different histories. The small spiral NGC 1317 has led an uneventful life, but NGC 1316 has engulfed several other galaxies in its violent history and shows the battle scars.
Misleading mineral may have resulted in overestimate of water in moon
on Tue, 01 Apr 2014 13:11:37 EDT:
The amount of water present in the moon may have been overestimated by scientists studying the mineral apatite, researchers have discovered. For decades, scientists believed the moon was almost entirely devoid of water. However, the discovery of hydrogen-rich apatite within lunar rocks in 2010 seemed to hint at a more watery past. Scientists originally assumed that information obtained from a small sample of apatite could predict the original water content of a large body of magma, or even the entire moon, but a new study indicates that apatite may, in fact, be deceptive.
'Cosmic barometer' could reveal violent events in universe's past
on Mon, 31 Mar 2014 08:37:36 EDT:
Scientists have developed a way of reading the universe‚Äôs ‚Äėcosmic barometer‚Äô to learn more about ancient violent events in space. Exploding stars, random impacts involving comets and meteorites, and even near misses between two bodies can create regions of great heat and high pressure. Researchers have now developed a method for analysing the pressure experienced by tiny samples of organic material that may have been ejected from dying stars before making a long journey through the cosmos.
Astronauts' hearts become more spherical in space
on Sat, 29 Mar 2014 17:51:06 EDT:
New findings from a study of 12 astronauts show the heart becomes more spherical when exposed to long periods of microgravity in space, a change that could lead to cardiac problems, according to research. With implications for an eventual manned mission to Mars, the findings represent an important step toward understanding how a spaceflight of 18 months or more could affect astronauts' heart health.
Hubble sees Mars-bound comet sprout multiple jets
on Thu, 27 Mar 2014 11:15:04 EDT:
A new image of a comet at 353 million miles from Earth shows two jets of dust coming off the comet's nucleus in opposite directions.
First sightings of solar flare phenomena confirm 3-D models of space weather
on Thu, 27 Mar 2014 10:13:25 EDT:
Scientists have for the first time witnessed the mechanism behind explosive energy releases in the Sun's atmosphere, confirming new theories about how solar flares are created. New footage put together by an international team of researchers shows how entangled magnetic field lines looping from the Sun's surface slip around each other and lead to an eruption 35 times the size of the Earth and an explosive release of magnetic energy into space.
The search for seeds of black holes
on Wed, 26 Mar 2014 17:03:20 EDT:
How do you grow a supermassive black hole that is a million to a billion times the mass of our sun? Astronomers do not know the answer, but a new study using data from NASA's Wide-field Infrared Survey Explorer, or WISE, has turned up what might be the cosmic seeds from which a black hole will sprout. The results are helping scientists piece together the evolution of supermassive black holes -- powerful objects that dominate the hearts of all galaxies.
Solar system has a new most-distant member
on Wed, 26 Mar 2014 15:37:25 EDT:
The Solar System has a new most-distant member, bringing its outer frontier into focus. New work reports the discovery of a distant dwarf planet, called 2012 VP113, which was found beyond the known edge of the Solar System. This is likely one of thousands of distant objects that are thought to form the so-called inner Oort cloud. The work indicates the potential presence of an enormous planet, not yet seen, but possibly influencing the orbit of inner Oort cloud objects.
First ring system around asteroid: Chariklo found to have two rings
on Wed, 26 Mar 2014 14:18:57 EDT:
Astronomers have made the surprise discovery that the remote asteroid Chariklo is surrounded by two dense and narrow rings. This is the smallest object by far found to have rings and only the fifth body in the Solar System ‚ÄĒ after the much larger planets Jupiter, Saturn, Uranus and Neptune ‚ÄĒ to have this feature. The origin of these rings remains a mystery, but they may be the result of a collision that created a disc of debris.
Dark energy hides behind phantom fields
on Wed, 26 Mar 2014 11:45:18 EDT:
Quintessence and phantom fields, two hypotheses formulated using data from satellites are among the many theories that try to explain the nature of dark energy. Now researchers suggest that both possibilities are only a mirage in the observations and it is the quantum vacuum which could be behind this energy that moves our universe. Cosmologists believe that some three quarters of the universe are made up of a mysterious dark energy which would explain its accelerated expansion. The truth is that they do not know what it could be, therefore they put forward possible solutions.
Contaminated white dwarfs: Scientists solve riddle of celestial archaeology
on Wed, 26 Mar 2014 09:22:40 EDT:
A decades old space mystery has been solved by an international team of astronomers. The team put forward a new theory for how collapsed stars become polluted -- that points to the ominous fate that awaits planet Earth. Scientists investigated hot, young, white dwarfs -- the super-dense remains of Sun-like stars that ran out of fuel and collapsed to about the size of the Earth.
Closest milemarker supernova in generation observed
on Tue, 25 Mar 2014 14:31:35 EDT:
Researchers have intently studied the closest type Ia supernova discovered in a generation. The proximity to Earth could yield better understanding of this particular type of supernova that astronomers use to gauge distances in the universe and learn about its expansion history. Type Ia supernovae may begin as a carbon/oxygen white dwarf star that feeds off a neighboring normal star. Once the white dwarf star accretes enough material to reach a mass that's 1.4 times the size of our sun compressed into a ball about the size of Earth, it becomes unstable and explodes into a supernova in a process that still isn't fully understood.
Don't forget F-type stars in search for life
on Tue, 25 Mar 2014 13:35:44 EDT:
F-type stars, more massive and hotter than our sun, warrant more consideration as spots to look for habitable planets, according to a newly published study that also examined potential damage to DNA from UV radiation.
How to look into the solar interior
on Tue, 25 Mar 2014 13:35:38 EDT:
Scientists have proposed the first ever quantitative description of the mechanism responsible for sunspot formation and underlying the solar activity cycle. Magnetic field helicity is one of the so-called motion invariants in magneto-hydrodynamics. It is a conserved quantity, like energy, describing the degree to which the field lines are "wrapped around themselves". During the last 20 years, scientists realized that conservation of this quantity is even more influential upon magnetic field evolution than energy conservation.
Lick's new Automated Planet Finder: First robotic telescope for planet hunters
on Tue, 25 Mar 2014 12:15:01 EDT:
Lick Observatory's newest telescope, the Automated Planet Finder, has been operating robotically night after night on Mt. Hamilton since January, searching nearby stars for Earth-sized planets. Its technical performance has been outstanding, making it not only the first robotic planet-finding facility but also one of the most sensitive.
Mars-mimicking chamber explores habitability of other planets
on Tue, 25 Mar 2014 11:29:28 EDT:
A research team in Spain has the enviable job of testing out new electromechanical gear for potential use in future missions to the Red Planet. They do it within their Mars environmental simulation chamber, which is specially designed to mimic conditions on the fourth planet from the sun -- right down to its infamous Martian dust.
Simple, like a neutron star: How neutron stars are like (and unlike) black holes
on Tue, 25 Mar 2014 09:44:29 EDT:
For astrophysicists neutron stars are extremely complex astronomical objects. Research has demonstrated that in certain respects these stars can instead be described very simply and that they show similarities with black holes.
Exploding stars prove Newton's law of gravity unchanged over cosmic time
on Mon, 24 Mar 2014 23:02:54 EDT:
Australian astronomers have combined all observations of supernovae ever made to determine that the strength of gravity has remained unchanged over the last nine billion years. Newton's gravitational constant, known as G, describes the attractive force between two objects, together with the separation between them and their masses. It has been previously suggested that G could have been slowly changing over the 13.8 billion years since the Big Bang. But researchers have now analyzed the light given off by 580 supernova explosions in the nearby and far Universe and have shown that the strength of gravity has not changed.
Studying crops, from outer space
on Mon, 24 Mar 2014 15:40:44 EDT:
Plants convert energy from sunlight into chemical energy during a process called photosynthesis. This energy is passed on to humans and animals that eat the plants, and thus photosynthesis is the primary source of energy for all life on Earth. New work uses a breakthrough in satellite technology to measure light that is emitted by plant leaves as a byproduct of photosynthesis from space.
Plugging the hole in Hawking's black hole theory
on Mon, 24 Mar 2014 14:54:07 EDT:
Recently physicists have been poking holes again in Stephen Hawking's black hole theory -- including Hawking himself. Now another professor has jumped into the fray. He believes he has solved the decades-old information paradox debate in a groundbreaking new study.
NASA Mars rover's next stop has sandstone variations
on Mon, 24 Mar 2014 14:23:37 EDT:
Variations in the stuff that cements grains together in sandstone have shaped the landscape surrounding NASA's Curiosity Mars rover and could be a study topic at the mission's next science waypoint.
LVAC: Advancing the technology readiness of SLS adaptive controls
on Mon, 24 Mar 2014 11:06:31 EDT:
Can a rocket maneuver like an airplane? And can an airplane act as a surrogate for a maneuvering rocket? NASA engineers demonstrated just that when they used a NASA F/A-18 aircraft recently to simulate a rocket in its early flight phase to test adaptive software for NASA's new rocket the Space Launch System (SLS), the largest, most powerful launch vehicle for deep space missions.
The amazing anatomy of James Webb Space Telescope mirrors
on Mon, 24 Mar 2014 11:04:00 EDT:
When you think of a mirror, there really isn't that much needed to describe it, but when you look at a mirror that will fly aboard NASA's next-generation James Webb Space Telescope, there's a lot to the anatomy of a mirror.