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

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

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

A newly discovered warp in the outer Solar System may have been created by a small, rocky world, much closer to the Sun than ...

A low-density, puffy planet orbiting relatively far from a young star in a nearly perpendicular orbit. What's going on?

We thought we understood planets, but the planetary disk chemistry of far-away XUE 10 is completely changing our conception ...

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

Long before humans built computers, nature built a better one. Razan Al Mubarak sees biodiversity as the planet’s original ...

Did NASA find another Earth? Scientists look to the sky to find a copy of our planet, and some experts think they may have ...

A recent study by Princeton University astronomers suggests the possible existence of a previously undetected planet in our ...

Warm Jupiters are rewriting the rules of planet formation - showing eccentric orbits that stay strangely aligned with their ...

Astronomers are investigating a strange class of exoplanets known as eccentric warm Jupiters — massive gas giants that orbit their stars in unexpected, elongated paths. Unlike their close-orbiting ...