The scientific value of aurora photos by astronauts

Some of the most wonderful pictures taken by astronauts from space are of aurora dancing over our planet. Now the photos are more than just pretty pictures thanks to an ESA project that makes them scientifically usable.

Eye-opening numbers on space debris

Orbital debris, otherwise known as "space junk", is a major concern. This massive cloud that orbits the Earth is the result of the many satellites, platforms and spent launchers that have been sent into space over the years. ...

How strong is the force of gravity on Earth?

Gravity is a pretty awesome fundamental force. If it wasn't for the Earth's comfortable 1 g, which causes objects to fall towards the Earth at a speed of 9.8 m/s², we'd all float off into space. And without it, all us terrestrial ...

How much radiation damage do astronauts really suffer in space?

Space is a really inhospitable place to live – there's no breathable air, microgravity wastes away your bones and muscles and you're subjected to increased doses of radiation in the form of high-energy charged particles. ...

Biological field stations: Keeping a pulse on our planet

A recent BioScience paper provides the first comprehensive inventory of the world's biological field stations. Its authors report 1,268 stations are operating in 120 countries—from the tropics to the tundra, monitoring ...

Gravity, who needs it? NASA studies your body in space

What happens to your body in space? NASA's Human Research Program has been unfolding answers for over a decade. Space is a dangerous, unfriendly place. Isolated from family and friends, exposed to radiation that could increase ...

Living in space—and on Earth—is a balancing act

According to doctors, sometimes the best treatment for what ails you is rest. A new joint investigation by NASA and the Russian Federal Space Agency (Roscosmos) may challenge that notion.

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