Astronomers first identified these minerals using the now-three-year-old James Webb Space Telescope. To see where exactly the ...

The Subaru Telescope has made an exciting discovery: a small body beyond Pluto, with implications for the formation, evolution, and current structure of the outer solar system.

Trans-Neptunian objects (TNO) are some of our solar system's lesser-known objects. They number in the thousands, and they get ...

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today." ...

The structure of the Solar System. The order of the planets. Natural and artificial satellites close satellite Body that orbits a planet. For example, ...

A young sunlike star called HOPS 315 seems to host a swirling disk of gas giving rise to minerals that kick-start the planet formation process.

For the first time, international researchers have pinpointed the moment when planets began to form around a star beyond the ...

Weighing in at 0.6 solar mass, HOPS-315 should someday grow to become a star much like our own sun; this makes it a promising stand-in for studying the first stages of our solar system’s history. For ...

Solar System Planets. Astronomy articles on the eight planets, plus the two dwarf planets, Pluto and Eris. Great pictures of everything in the solar system. Updated daily.

An accidental discovery might change how we think about one of the most mysterious structures in our solar system. The Oort Cloud, a large expanse of icy bodies revolving around the sun at a ...