When a meteor streaks across the sky, it's not just beautiful. It's nature's way of delivering a time capsule to Earth.

Astronomers measure the speed at which the solar system is hurtling through space by mapping surrounding galaxies and ...

The outer planets of the solar system are swarmed by ice-wrapped moons. Some of these, such as Saturn's moon Enceladus, are ...

Mercury is the innermost and smallest of the eight major planets in our Solar System, orbiting closest to the Sun. Though ...

Could you survive a day on every planet in our solar system? Experience the extreme conditions across the planets in a single ...

Discover what could happen if Planet X entered our solar system unexpectedly. Veterans flood Democrat’s office with ...

Scientists traced the Moon's parent planet Theia to the inner Solar System, solving a 4.5-billion-year mystery.

When astronomers search for planets that could host liquid water on their surface, they start by looking at a star's habitable zone. Water is a key ingredient for life, and on a planet too close to ...

Little is known about the long-destroyed moon-forming planet, Theia. But it may have been born in the inner solar system—just like Earth—a new study suggests ...

Currently there is a third “interstellar interloper” now passing through the solar system designated as 3i/ATLAS, for the ...

On 23 November, skywatchers were stunned as Saturn looked strangely bare in the night sky, a rare cosmic moment that made its ...

The results show a circular “hotspot” on the side of the planet that always faces its star, surrounded by a cooler ring at ...