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

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

Astronomers are tracking strange orbital patterns in the outer Solar System that suggest a massive unseen planet may exist ...

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

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

Astronomers are abuzz with the discovery of a rogue planet, 2MASS J05325346+0919037, which is set to pass within 0.05 ...

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

“Overall, our findings challenge the conventional classification of Uranus and Neptune as ’ice giants’ and underscore the ...

The ice giants remain some of the most interesting places to explore in the solar system. Uranus in particular has drawn a ...

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 ...

Planets do not emit visible light like stars; they shine in the sky because they reflect sunlight. Exoplanets too reflect starlight, and nobody does it better than LTT9779b. This world reflects 80 ...

Roughly 4.5 billion years ago, the young solar system was a swirling cloud of gas and dust that formed the first asteroids ...