Comet or asteroid heading for the Sun is only the third time an interstellar object has been spotted inside our group of ...

Young planets are often too small to be detected directly, and many protoplanetary disks are too distant to be observed in detail. Instead, astronomers look for indirect evidence, such as rings, gaps, ...

Astronomers have announced the discovery of A11pl3Z, a massive new interstellar object entering our solar system.

Oumuamua stunned scientists as the interstellar object entered and then exited the solar system, something previously ...

A unique new material that shrinks when it is heated and expands when it is cooled could help enable the ultra-stable space ...

"Each new detection brings us closer to understanding the origins of complex organic chemistry in the universe — and perhaps, ...

TOI-6894 b, the largest exoplanet relative to its host star yet seen, doesn’t fit the most widely accepted formation model ...

In a rare astronomical event, astronomers have confirmed the passage of an interstellar object through our solar system.

The best telescopes for seeing planets will let you capture Saturn and Neptune in the same view. Watch out for Prime Day, which is your chance to save big on deep space observation.

As the sun grew hotter, so did Mars, prompting much of its atmospheric carbon dioxide to rain out and ultimately get locked ...

Artist's concept of the star HIP 67522 with a flare erupting toward an orbiting planet, HIP 67522 b. A second planet, HIP ...

Orbiting its star in an elliptical path at less than half the distance between Earth and the Sun, this exoplanet offers a ...