SILVER SPRING, Md. (NOAA PR) — The Sun is Earth’s nearest star—a giant orb of hydrogen and helium about 93 million miles away. To many people, it looks like the same constant ball of light day after day as it moves across the sky. However, our Sun actually goes through a cycle of increasing and decreasing activity that lasts for about 11 years.
As NASA contemplates deep space missions to the moon and Mars, the space agency faces increasing challenges in keeping its astronauts physically and mentally healthy.
One of the key elements in that challenge is fresh food. Currently, fresh produce is supplied periodically to astronauts aboard the International Space Station (ISS) on resupply ships. Crew members have also grown small quantities of vegetables on board.
Resupply becomes a more difficult task on deep space missions due to distance. Thus, astronauts will need to grow more of their own food. Last week, NASA announced three Small Business Technology Transfer (STTR) awards to advance that goal.
WASHINGTON (ESA PR) — For the first time, ESA will cover a major international asteroid impact exercise live via social media, highlighting the the actions that might be taken by scientists, space agencies and civil protection organisations.
Every two years, asteroid experts from across the globe come together to simulate a fictional but plausible imminent asteroid impact on Earth. During the week-long scenario, participants – playing roles such as ‘national government’, ‘space agency’, ‘astronomer’ and ‘civil protection office’ – don’t know how the situation will evolve from one day to the next, and must make plans based on the daily updates they are given.
For the first time, ESA will cover progress of the hypothetical impact scenario from 29 April to 3 May live via social media, primarily via the @esaoperations Twitter channel. (more…)
WASHINGTON (NASA PR) — While headlines routinely report on “close shaves” and “near-misses” when near-Earth objects (NEOs) such as asteroids or comets pass relatively close to Earth, the real work of preparing for the possibility of a NEO impact with Earth goes on mostly out of the public eye.
EL SEGUNDO, Calif. (NASA PR) — What would we do if we discovered a large asteroid on course to impact Earth? While highly unlikely, that was the high-consequence scenario discussed by attendees at an Oct. 25 NASA-FEMA tabletop exercise in El Segundo, California.