What lies at the center of the Earth? The answer keeps changing.
A new study out this week said that the Earth's inner core is less solid than previously thought. Scientists still have questions, though.
Hydrogels could be ideal radiation protection for astronauts
It's a key problem that will need to be addressed if humans are to attempt deep-space, long-duration missions. Not only is radiation exposure a dangerous health risk to humans, but it also poses a ...
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The Missile Defense Mirage
From Reagan's Star Wars to Trump's Iron Dome vision, the quest for an American missile shield faces harsh technical realities ...
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Might Uranus And Neptune Have Deep, Multi-Layer Oceans?
Non-mixing layers of water and hydrocarbons thousands of miles deep could explain the icy planets’ strange magnetic fields.
Researchers Uncover Mysterious Structural Changes in Earth’s Inner Core
A new study reveals that the Earth's inner core is undergoing a structural transformation. A new study by USC scientists, ...
What’s an atmospheric river? A pineapple express? AP explains the weather phenomenon
Atmospheric rivers are long and relatively narrow bands of water vapor that form over an ocean and flow through the sky, ...