Water. All life on Earth requires it in some way or another, and it's hard to miss that roughly 70% of our planet's surface ...

Scientists have reevaluated the water composition of Comet 67P, finding it surprisingly similar to Earth's oceans. This ...

NASA's Wide-field Infrared Survey Explorer (WISE) spacecraft launched to Earth orbit in 2009 and was placed in hibernation in ...

The water on Earth might have been delivered from space by comets billions of years ago - NASA scientists say Jupiter-family ...

Scientists have revived the theory that short-period comets could have played a crucial role in filling Earth's oceans with ...

The origin of Earth’s abundant liquid water is still debated. Research suggests some water came from volcanic vapor that ...

Scientists uncovered new insights regarding the potential role of comets, particularly Comet 67P/Churyumov-Gerasimenko, in ...

A "harmless" asteroid burned up Tuesday night above northern Siberia in Russia, creating a blazing fireball in the sky ...

That is roughly the same width as the entire state of Arizona. Within the last few years, NASA has taken steps to protect ...

Scientists say cometary dust affects interpretation of spacecraft measurements, reopening the case for comets as potential ...

Comet 67P's water has the same molecular signature as Earth's oceans, suggesting it may have contributed to Earth's water ...

Designated as COWECP5, the asteroid burned up in the atmosphere as it streaked across the Eastern Siberia sky around 11:14 ...