Floating around at the edge of the Solar System are leftovers from its formation. This is the Kuiper Belt, which is composed ...

Most Planets Have No Known Date of First Observation . Before we begin, I want you to imagine a clear night sky you've ...

A newly identified Kuiper Belt trio, possibly only the second of its kind, could provide strong evidence that these distant ...

With a sun more than 4.5 billion years old, our solar system is considered "middle-aged," and the pictures of what it might ...

Dec. 9, 2024 — A NASA Hubble Space Telescope observation program called OPAL (Outer Planet Atmospheres Legacy) obtains long-term baseline observations of Jupiter, Saturn, Uranus, and Neptune in ...

The James Webb Space Telescope is investigating the Flame Nebula, hunting for "failed stars" to better understand how brown ...

2024 — NASA's Hubble Space Telescope and New Horizons spacecraft simultaneously set their sights on Uranus recently, allowing scientists to make a direct comparison of the planet from two very ...

It's a new type of three-body problem for astronomers, who used the Hubble Space Telescope to determine that twin asteroids ...

“There's a big overlap between the things that could be planets and the things that are very ... That's over two-and-a-half times larger than the Hubble Space Telescope's mirror, meaning Webb has six ...

Astronomers using a cutting-edge adaptive optics instrument, MagAO-X, have captured unprecedented images of young planets ...