The mysterious interstellar object soaring through our Solar System is set to slip behind the sun starting tomorrow. A ...

The ice giants remain some of the most interesting places to explore in the solar system. Uranus in particular has drawn a ...

Roughly 4.5 billion years ago, the young solar system was a swirling cloud of gas and dust that formed the first asteroids ...

A planetary scientist who has participated in analog missions describes their value for planning space exploration – and ...

It will be a while before you can see it for yourself, however. Halley’s comet was last visible from Earth in 1986, meaning ...

In a rare glimpse into the earliest days of our planet, scientists have discovered remnants of the “proto Earth.” ...

A discovery in V883 Orionis' planet-forming disk suggests Earth's water could have come from ancient interstellar ice that ...

Astronomers are watching a new comet pass through our solar system with great interest. Based on its glow, the 33-billion-ton ...

Planets do not emit visible light like stars; they shine in the sky because they reflect sunlight. Exoplanets too reflect ...

This long-duration comet will make its closest approach to Earth this fall, before disappearing into the outer solar system ...

The James Webb Telescope captures the beginning of planetary formation around the young star HOPS-315 for the first time.

Millions of years before blue oceans and wandering continents, the Earth in its early days was a molten, tumultuous planet — ...