Comet 3I/ATLAS is the third known interstellar comet after 2017's 1I/'Oumuamua and 2019's 2I/Borisov. It was discovered on ...

The European Space Agency has released new images of a rare "butterfly" crater on the Red Planet. The bug-like structure ...

Earth’s climate is not only shaped by smokestacks, forests, and oceans. It is also quietly tuned by the slow choreography of ...

New laboratory studies could shed light on a rock containing potential signs of alien life that’s stranded on Mars ...

Snow was moving through the Pittsburgh area Saturday night and was expected to continue into early Sunday morning.

It’s hard to form rocks like these without a lot of water,” said Dr. Briony Horgan, a planetary scientist and member of ...

Mars is rich in ice, both on and under its surface—with more predicted to lie farther below its dusty exterior. If future ...

MAVEN (short for "Mars Atmosphere and Volatile Evolution") has been silent since Dec. 4, despite repeated efforts to hail the ...

NASA’s Perseverance rover has been exploring the surface of Mars since it landed there in spectacular fashion nearly five ...

Mars changed from a blue world with water to a red desert because its atmosphere escaped into space over billions of years.

After nearly five years on Mars, NASA's Perseverance rover has traveled almost 25 miles (40 kilometers), and the mission team has been busy testing the rover's durability and gathering new science ...