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

How Many Planets Are There in the Solar System? There are 8 planets in our solar system. The planets orbit the Sun in ...

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

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

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

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

Astronomers have spotted a cosmic mismatch that has left them perplexed - a really big planet orbiting a really small star. The discovery defies current understanding of how planets form.

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

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

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

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.

#2. The Moon came from Earth. It didn’t form beside our planet, and Earth’s gravity didn’t capture it. The latest theory says ...