Could a lonely planet wander aimlessly through the restless galaxy change the subtle dance of gravity within our solar system ...

The Indian Ocean Geoid Low ranks as the largest negative "gravity hole" anomaly on Earth, which is why the “thumbprint” jumps ...

A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

The methane gas may constitute a rarefied atmosphere, or it may come from erupting plumes on Makemake’s surface.

The European Space Agency (ESA) is planning the Rapid Apophis Mission for Space Safety (RAMSES) mission to the Apophis asteroid.

About 4. 6 billion years ago, the Solar System formed from a cloud of dust and gas collapsing in on itself due to gravity.

Hera, a European spacecraft, is halfway to the Didymos asteroid system to study the impact of NASA’s DART mission.

The sneaky asteroid is from the Apollo cluster, a group of near-Earth asteroids that can occasionally get pretty close to us. It sped past at a break-neck 46,700 miles per hour, while it's believed to ...

Venus has long been called a dry, hellish planet veiled in clouds of liquid acid. But new study of old spacecraft data tells ...

A fleet of ball-shaped rovers could drift across the Martian surface like tumbleweed, driven simply by the wind.