In 2020, China launched the first probe of its Tianwen series of missions, which entered Mars' orbit and landed the Zhurong rover on the red planet in 2021. The mission has significantly advanced ...

New research suggests that Jupiter, the largest planet in our solar system, was once even bigger—about twice its current size—and had a magnetic field 50 times stronger than it does today. This ...

Our solar system’s origin story spans billions of years and involves clouds of gas, cosmic collisions, and planetary ...

A new analysis of planet formation models estimates the odds of a theoretical Planet Nine orbiting our sun at 40% given ...

A new study from the University of Arizona reveals an unexpected way that planets' cores might form in our solar system.

Scientists suggest a star and its planet are orbiting a second star in two opposite directions in an exotic binary star ...

Jupiter may have once been more than twice its current size, with a magnetic field 50 times stronger, say scientists who ...

A decade after the release of "The Martian" and a decade out from the world it envisions, how close is reality to fiction?

A recent study found that Jupiter was once twice the size that it is now, making it big enough to swallow up 2,000 Earths.

Researchers from Nagoya City University, Tohoku University, and other institutions have used numerical simulations to ...

Jupiter wasn’t always the planet we know today—it was once twice as big, had a magnetic field 50 times stronger, and its ...