A distant gas giant the size of 10 Jupiters is now the first planet outside Earth's solar system to be mapped in three ...

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

A scientist spotted an asteroid hiding in the sun's glare that orbits the sun in just 128 days, making it the second fastest ...

Astronomers have identified 3I/ATLAS, an ancient, ice-rich interstellar comet potentially older than our solar system.

A peculiar interstellar visitor, 3I/ATLAS, is challenging comet theories with its sunward tail and unusual composition. While ...

Although it's smaller than a planet, Chiron could be a natural laboratory for learning about how ring systems form, change, ...

As the third known interstellar object in history, 3I/ATLAS has astronomers and the internet on edge. Is it just a comet from ...

An interstellar comet that originated outside our solar system just flew by the sun. Next, the object will fly by Earth in ...

Researchers rarely get a glimpse of an interstellar object up close like 3I-ATLAS, so they have jumped on the opportunity to learn about its composition, which can reveal how planet systems are made.

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

After conjunction and perihelion, the comet has come out from behind the solar glare and the first image shared.

A new analysis estimates that the asteroid belt is steadily losing mass each year, and may not be as permanent a feature of ...