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 ...

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

Astronomers are investigating a potential hidden planet, dubbed Planet Y, far beyond Neptune. Its gravitational pull is ...

How can we figure out if the planet is actually there? And will it even be bright enough to see? Here are some answers to these and other pressing questions. Others aren’t quite so sure. “I’m very ...

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

The equatorial regions of Mars are home to unexpectedly enormous layers of ice, and they may have been put there by dramatic ...

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

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