Boulder, Colo., USA – Monica Pondrelli and colleagues investigated the Equatorial Layered Deposits (ELDs) of Arabia Terra in Firsoff crater area, Mars, to understand their formation and potential habitability. On the plateau, ELDs consist of rare mounds, flat-lying deposits, and cross-bedded dune fields. Pondrelli and colleagues interpret the mounds as smaller spring deposits, the flat-lying deposits as playa, and the cross-bedded dune fields as aeolian. They write that groundwater fluctuation [...]
The team operating NASA's Mars Exploration Rover Opportunity learned Thursday that the long-lived rover experienced a brief amnesia event related to its flash memory, the first since a reformatting of that nonvolatile type of memory a week earlier.
The amnesia event did not result in any loss of science data, and Opportunity subsequently continued its activities using tools on its robotic arm to examine a rock target called "Athens." The rover experienced dozens of similar amnesia events and [...]
Kelly and Kornienko will spend about a year on the space station to better understand how the human body reacts and adapts to the harsh environment of space. Data from the one-year mission will be used to determine whether there are ways to further reduce the risks on future long-duration missions to an asteroid and eventually Mars.
The crew will support several hundred experiments in biology, biotechnology, physical science and Earth science — research that impacts life on Earth. Data and [...]
Near the March 20 equinox the cold clear sky over Longyearbyen, Norway, planet Earth held an engaging sight, a total eclipse of the Sun. The New Moon's silhouette at stages just before and after the three minute long total phase seems to sprout glistening diamonds and bright beads in this time lapse composite of the geocentric celestial event.
The last and first glimpses of the solar disk with the lunar limb surrounded by the glow of the Sun's inner corona give the impression of a diamond rin [...]
With tonight’s Soyuz success that lofted two Galileo satellites from French Guiana, Arianespace once again has delivered on its primary mission to support European governments and institutions with independent, reliable and available access to space.
Lifting off from the Spaceport at precisely 6:46:18 p.m. local time, the medium-lift Soyuz performed a flight of nearly 3 hours and 48 minutes to deploy “Adam” and “Anastasia” – which are the third and fourth Full Operational Capabil [...]
The Soyuz TMA-16M launched from the Baikonur Cosmodrome in Kazakhstan to the International Space Station at 3:42 p.m. EDT (1:42 a.m. on March 28 Baikonur time). Scott Kelly of NASA, Mikhail Kornienko and Gennady Padalka of the Russian Federal Space Agency (Roscosmos) now are safely in orbit.
Kelly, Kornienko and Padalka will dock with the station’s Poisk module at 9:36 p.m. NASA Television coverage of the docking will begin at 8:45 p.m. Welcoming them aboard will be the current station resi [...]
This NASA/ESA Hubble Space Telescope image shows an edge-on view of the spiral galaxy NGC 5023. Due to its orientation we cannot appreciate its spiral arms, but we can admire the elegant profile of its disk. The galaxy lies over 30 million light-years away from us.
NGC 5023 is part of the M51 group of galaxies. The brightest galaxy in this group is Messier 51, the Whirlpool Galaxy, which has been captured by Hubble many times. NGC 5023 is less fond of the limelight and seems rather unsociable [...]
The Russian Soyuz spacecraft that will carry three additional crew members to the International Space Station stands ready for its 3:42 p.m. EDT liftoff. NASA Television coverage of the launch begins at 2:30 p.m.
Scott Kelly of NASA, with Mikhail Kornienko and Gennady Padalka of the Russian Federal Space Agency, will launch aboard their Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan.
Tim Peake has recently issued the challenge to schools and other organisations to ‘Make That Call’ to him in space, using the amateur radio on board the ISS. But what is this amateur radio, and how does it work? Amateur …
Magnificent island universe NGC 2403 stands within the boundaries of the long-necked constellation Camelopardalis. Some 10 million light-years distant and about 50,000 light-years across, the spiral galaxy also seems to have more than its fair share of giant star forming HII regions, marked by the telltale reddish glow of atomic hydrogen gas.
The giant HII regions are energized by clusters of hot, massive stars that explode as bright supernovae at the end of their short and furious lives. A [...]
The brilliant explosions of dead stars have been used for years to illuminate the far-flung reaches of our cosmos. The explosions, called Type Ia supernovae, allow astronomers to measure the distances to galaxies and measure the ever-increasing rate at which our universe is stretching apart.
But these tools aren't perfect. In the cosmic hardware store of our universe, improvements are ongoing. In a new report, appearing March 27 in the journal Science, astronomers identify the best, top-of-th [...]
Using observations from NASA’s Hubble Space Telescope and Chandra X-ray Observatory, astronomers have found that dark matter does not slow down when colliding with itself, meaning it interacts with itself less than previously thought. Researchers say this finding narrows down the options for what this mysterious substance might be.
Dark matter is an invisible matter that makes up most of the mass of the universe. Because dark matter does not reflect, absorb or emit light, it can only be tra [...]