Mainstream theories suggest that ultra-short period planets did not start in their current positions but migrated from ...

There exists a very special class of planets in the universe—ultra-short period planets. They are like "mysterious visitors" from interstellar space, challenging traditional understanding with their ...

When the JWST finally began its long-awaited science operations in July 2022, there was a long list of targets awaiting its ...

Asteroid deflection could backfire if the impact shoves the rock into a cosmic keyhole, a hidden trapdoor in space.

The first-ever detection of gravitational waves was made 10 years ago today (Sept. 14). In celebration, Space.com takes you through the most significant gravitational wave discoveries to date.

Italian photographer Marcella Giulia Pace spent a decade capturing 48 full moons in different colours, revealing how Earth's atmosphere transforms and shapes life on Earth.

A NASA spacecraft survived extreme radiation and captured rich images of the most volcanic world in our solar system, the tortured moon Io.