At least three old satellites or rocket bodies fall back to Earth every day, a new report reveals. And experts warn that the ...

Health risks beyond Earth Extended stays in space already come with unavoidable challenges. In the absence of gravity, bones lose density and muscles shrink from lack of stress. Astronauts can ...

For the study, the researchers conducted an analogous examination of substances on Earth that cause health problems and could ... who is a geologist at the Laboratory for Atmospheric and Space Physics ...

Looking at the Earth from space like this, he says ... BBC Click visits a UK research team working on a solution to remove toxic chemicals known as PFAS from water. It starts nearly 40 years ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Toxic dust on Mars ...