We've known for over 30 years that there are other stellar systems in our galaxy, but we don't have any idea how many there are.

This revelation could shed light on the evolution of planets and the origin of prevalent sub-Neptunes in our galaxy. The findings were published Wednesday in the journal Nature.

Astronomers have discovered a rare solar system in the Milky Way with six planets orbiting in perfect rhythm like a cosmic orchestra.

Called 3I/ATLAS, the object is only the third of its kind known to astronomers, and it’s likely been heading our way for billions of years, carrying pristine material from another star system ...

The James Webb Space Telescope has uncovered something about the interstellar comet that's never been observed before, ...

The Kepler Space Telescope found the oldest solar system in the galaxy. While digging through backlogged data from the Kepler telescope, scientists found Kepler-444, an 11.2 billion year-old star ...

A new image has revealed the clearest glimpse yet of an interstellar visitor zipping through our solar system. Video above: Astronomers discover how planets form The Hubble Telescope and its Wide ...

Astronomers have spotted 3I/ATLAS, just the third interstellar object ever seen in our solar system. Bigger, faster, and possibly far older than ‘Oumuamua or Borisov, this icy traveler could help ...

The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought experiment to it, highlighting everything about it that might align with a hypothetical alien spacecraft.

Scientists have developed a new prediction of the shape of the bubble surrounding our solar system using a model developed with data from NASA missions. All the planets of our solar system are ...