Mars is a cold, dry, desert-like planet. But billions of years ago, scientific evidence suggests that it had a thick ...

Taken together, the 3I/ATLAS mystery goes beyond astrophysics. It is a test for the new human era — one that demands ...

NASA installs two solar shields on the Roman telescope at Goddard: they will protect the instruments from heat and light.

A futuristic solar-power project backed by OC real estate mogul Donald Bren needs to move into the commercial sphere, ...

A rare interstellar visitor has ignited scientific curiosity and political debate as it speeds through our solar system. On ...

The mysterious nature of 3I/ATLAS continues to baffle scientists, especially after the latest images. In recent observations, the space object was apparently spotted without a tai ...

The twin-satellite mission could provide vital clues about Mars’ evolution and its ability to once support water and life.

“It’s a huge privilege to be leading a mission to Mars,” said Robert Lillis, the UC Berkeley planetary scientist leading the ...

China has shared stunning images of comet 3I/ATLAS captured near Mars. The Chinese Tianwen-1 orbiter provided the first views ...

Interstellar object 3I/ATLAS no longer has a tail, defying behavior for a “typical comet,” and adding to mystery surrounding ...

The U.S. space agency has fallen silent amid the federal government shutdown, but it's about to slingshot a pair of robotic ...

Cassini’s new analysis shows Saturn’s moon Enceladus leaking heat from both poles, not just the south. This balanced heat flow suggests its underground ocean could stay liquid for geological ages, ...