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.