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

"The complexity of the exo-Neptunian landscape provides offers a unique window onto the processes involved in the formation ...

When it comes to science, a simple observation can upend everything you think you know, such is the case with one star ...

Using the James Webb Space Telescope (JWST), astronomers have peered deep into one of the Milky Way's most radiation-intense star-forming regions, revealing that Earth-like planets can form even in ...

Free-floating, planetary-mass objects that are just drifting carefree through the galaxy, untethered and starless, appear to be able to generate their own systems of moons, like a planetary system on ...

We all need some space sometimes—but it's harder to find than you might think. How far into our universe do we have to go to ...

From how space rocks wobble to where to hit them, scientists are learning the fine art of asteroid deflection — and it could ...

A new study led by UNLV scientists sheds light on how planets, including Earth, formed in our galaxy—and why the life and ...

Fresh off the excitement of the Perseids meteor shower is a chance to see six planets lined up in the sky at once. These events, colloquially known as planet parades, occur occasionally with the most ...

Observations of Jupiter show that ammonia is unevenly distributed in the upper atmosphere, against expectations of uniform mixing. Scientists found evidence for a complicated but apparently real ...