The six-person Expedition 40 crew wrapped up a productive week of cargo vehicle traffic and science aboard the International Space Station with more medical studies, physics and robotics on Friday. Meanwhile, preparations continue for the launch of another station resupply vehicle next week.
Station Commander Steve Swanson kicked off the day with the Skin B study as he scanned the skin on his forearm with several dermatology tools. Skin B investigates the accelerated aging of skin that seems [...]
NASA is taking steps to protect its Mars orbiters, while preserving opportunities to gather valuable scientific data, as Comet C/2013 A1 Siding Spring heads toward a close flyby of Mars on Oct. 19.
The comet's nucleus will miss Mars by about 82,000 miles (132,000 kilometers), shedding material hurtling at about 35 miles (56 kilometers) per second, relative to Mars and Mars-orbiting spacecraft. At that velocity, even the smallest particle -- estimated to be about one-fiftieth of an inch (half [...]
The Universe is a big place, full of unknowns. Astronomers using NASA's Chandra X-ray Observatory have just catalogued a new one.
"I couldn't believe my eyes," says Esra Bulbul of the Harvard Center for Astrophysics. "What we found, at first glance, could not be explained by known physics."
Together with a team of more than a half-dozen colleagues, Bulbul has been using Chandra to explore the Perseus Cluster, a swarm of galaxies approximately 250 million light years from Earth. [...]
Space is about power--the energy to leave Earth and soar to new places. From rockets carrying humans, to small, inexpensive satellites, to robotic explorers--all need power to achieve mission success. But often power sources are large, costly and difficult to maintain.
NASA engineers, working with industry partners, recently built and tested a large, inflatable solar array with the potential to provide affordable, lightweight power for both large and small spacecraft. This technology could b [...]