Oxygen is crucial for life as we know it, but before it could build up in our atmosphere, earth had to slow down. Hosted by: ...

Cimate scientists are more certain than ever that humans are changing the climate – but there are signs of hope on the ...

NASA is unveiling close-up pictures of the interstellar comet that's making a quick one-and-done tour of our solar system.

Scientists may finally be closing in on the origins of two colossal, mysterious structures buried nearly 1,800 miles inside ...

The researchers simulated space conditions by exposing the three tissues to UV radiation and freezing and high temperatures.