Scientists have worked hard to understand how Earth has so much life-giving water ... attempt to explain the origin of water ...

It is also theoretical. Astronomers infer the Oort Cloud is there because it’s the only logical explanation for the arrival of a certain class of comets that sporadically visit our solar system. The ...

Stonehenge’s central stone, known as the Altar Stone, may have had Scottish and not Welsh origins, researchers say. The finding suggests that Late Neolithic ...

A city-sized asteroid is approaching Earth this October, set to make its closest approach on October 27. Known as 1036 ...

Described self-referentially in the cartoon Sonic Boom as "the second most popular character in the entire Sonic canon," Shadow the Hedgehog is an instantly recognizable antihero. Those sleek ...

The answers, Lauretta believed, could be found within asteroids and comets—debris left over ... There’s plenty of work to be done here on Earth. Those grains won’t answer all of his questions—about ...

LOUIS — Comet Tsuchinshan-Atlas ... They may have played a role in delivering water to early Earth, potentially contributing to the origins of life. However, they also pose a potential threat ...

The last major highlight this month is the annual Leonid meteor shower which peaks on Nov. 17 but is active nearly all month long.

NASA’s Lunar Trailblazer mission will map the Moon’s water distribution, helping solve mysteries of its origins and behavior.

Bair works with an astronomer to study comets and determine their properties and chemical composition, which give clues about their origins ... it gets farther from Earth, Bair said.

Mars didn’t always look like this. It may have once been covered in oceans. But what if we brought all the Martian water back and transformed the red planet into one that’s half blue? What would Mars ...