Scientists have identified water as one of the most effective materials for blocking radiation. Water is dense and contains ...

Radioactive spike found in Pacific seabed samples. It could be from space radiation or changes in ocean currents 10 million ...

Data collected from a once-defunct NASA satellite show that Earth grew two extra radiation belts following a supercharged ...

The human body was not built for spaceflight, with its microgravity conditions, exposure to high-energy radiation and other ...

Learn how forces deep underground generate a protective bubble between us and space.

Over 40,000 years ago, Earth's magnetic field pulled a switcheroo, flipping its poles in a dramatic shift known as the ...

This even distribution of hydrogen is thought to be key to developing scalable radiation shields for both spacecraft and the ...

which is almost 200 times Earth exposure. Speed can help to minimize this exposure but the main protection is some kind of shielding that can absorb the radiation before it can do any harm.

Beyond Earth’s protective shield, astronauts receive a year’s worth of radiation in just one day. Longer missions, like a Mars trip, require additional radiation shielding. 3D-printed hydrogels offer ...