Add Yahoo as a preferred source to see more of our stories on Google. An artist's impression of a planetary system with four planets, around a small red star, called LHS1903 with a large reddish-brown ...

Astronomers now estimate there is at least one planet for every star in our galaxy. These worlds, called exoplanets, are ...

A newly analyzed planetary system spotted by NASA’s TESS mission is challenging long-standing assumptions about how planets ...

Learn more about the interstellar traveler, Comet 3I/ATLAS, and what researchers know about its place of origin.

It's been 20 years since Pluto lost its status as the ninth planet of the solar system, but we still can't seem to let it go.

Astronomers at The University of New Mexico have published new research confirming three bodies orbiting the dynamic ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist's impression shows the "inside out" planetary system around the star LHS 1903. - ESA An exoplanetary system about 116 ...

A strange planetary system called TOI-201 is changing in real time, with three very different worlds pulling on each other.

This artist's impressions shows the unusual set up of the solar system around the LHS 1903 star - Copyright ESA/AFP Handout This artist's impressions shows the ...

Scientists suggest that a fifth, hidden force linked to dark energy may exist in the solar system but has not yet been ...

The dazzling lights of the aurora are created when high-energy particles from space collide with Earth's atmosphere. While scientists have long understood this process, one big mystery remained: What ...

NEW YORK (CNN) — An exoplanetary system about 116 light-years from Earth could flip the script on how planets form, according to researchers who discovered it using telescopes from NASA and the ...