When you look at the solar system, you might notice that the planets' orbits are tilted, and oddities in the protoplanetary ...

There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

The Adirondack Sky Center & Observatory is thrilled to be your guide to the skies. In this column, I’ll be clarifying some of ...

The James Webb Telescope captures the beginning of planetary formation around the young star HOPS-315 for the first time.

If a massive ninth planet exists in our solar system, it might explain why the planets are out of line with the sun. The eight major planets still circle the sun in the original plane of their birth.

Could a lonely planet wander aimlessly through the restless galaxy change the subtle dance of gravity within our solar system ...

There are ‘super-Earths’ and ‘mini-Neptunes’ — categorized because of how their masses compare with those of planets in the ...

Astronomers are investigating a potential hidden planet, dubbed Planet Y, far beyond Neptune. Its gravitational pull is ...

Six planets are hanging out in the sky this month in what’s known as a planetary parade. Catch the spectacle while you can because it’s the last one of the year. These linkups happen when several ...

From lava worlds to gas giants, NASA says the variety of these worlds is staggering—and that signs of a further 8,000 distant ...