Strange, quasi-circular circles structures called coronae scour the surface of Venus — but their origins are a mystery.

What new methods can be employed to help astronomers distinguish the light from an exoplanet and its host star so the ...

Venus is often called Earth's "sister planet" because of their similarities in size, mass, and composition. Both are rocky ...

Find out what's up in your night sky during October 2025 and how to see it in this Space.com stargazing guide.

Somewhere in the orbit of Venus, scientists believe a hidden population of asteroids is circling the Sun—nearly invisible to Earth-bound telescopes and possibly capable of striking our planet with ...

A new study warns of an undiscovered population of asteroids that could strike Earth with little to no warning.

Venus is officially a lonely planet. After losing contact with the Akatsuki spacecraft last year, Japan’s space agency (JAXA) ...

Asteroids are small, rocky objects that orbit the Sun and were typically formed during the solar system's development ...

Created by the sun, the protective bubble of the heliosphere shields our solar system from harmful radiation. A new mission ...