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

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

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

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

The solar system is composed of the sun, eight major planets, five dwarf planets, over a hundred moons, and countless comets ...

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 ...

New observations suggest that the dwarf planet Makemake is surrounded by faintly glowing methane gas. Scientists are unsure if the gas is contained within a wispy atmosphere or being ejected into ...

Astronomers have discovered asteroid 2025 SC79, a skyscraper-sized space rock orbiting the sun in just 128 days. the ...

Astronomers have been actively hunting for a ninth planet in the solar system for almost a decade ... within the Kuiper Belt ...

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

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system. The object—which orbits out beyond Neptune—has been named "2017 OF201" by the ...

Our solar system now, once again, officially consists of only eight planets. Although largely debunked, speculation continued ...