What’s the Big Deal about Solar Cycles?

Sun and Earth (Credit: NOAA)

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.

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NASA Funds Research into Food Production on Deep Space Missions

Canadian Space Agency astronaut Chris Hadfield maintaining Biolab in Europe’s Columbus laboratory on the International Space Station. Biolab is an experiment workstation tailored for research on biological samples such as micro-organisms, cells, tissue cultures, plants and small invertebrates. The unit features a centrifuge that creates simulated gravity to compare how samples react to weightlessness and artificial gravity. (Credit; NASA)

by Douglas Messier
Managing Editor

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.

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