Since Pluto was relegated to dwarf planet status, almost everyone has agreed that there are eight planets in our solar system ...

What can white dwarf stars eating their own planets teach astronomers about planetary and solar system formation and ...

Material around Chiron, a small icy world in the far reaches of the solar system, may be taking shape into a ring system of ...

In an ancient star system expected to be stable and dormant, scientists found a 3 billion-year-old white dwarf star still ...

A coronal mass ejection on another star has been witnessed in its entirety for the first time, revealing that when these ...

What's special about Chiron's rings is that they're still forming; this marks the first time astronomers have ever seen a ...

Planet Y is the latest in a series of hypothetical solar system planets that scientists have proposed in recent years, all with slightly different characteristics, but collectively believed to be ...

Astronomers have found GJ 251 c, a rocky planet. It is a super-Earth located only 18 light-years away. This planet is in its ...

In approximately 5 billion years, the sun will deplete its hydrogen fuel and collapse under its own gravity, becoming a white ...

By combining the power of ground-based and space-based telescopes, astronomers have discovered a new brown dwarf—a type of ...

For all the talk about life across the cosmos, Earth remains the only confirmed example. That single data point makes your place in the universe feel both ordinary and strange.

The post Astronomers Spot The Closest Ever Identified Exoplanet In A Habitable Zone, And It’s In Our Nearest Star System ...