Astronomers witness first moments of planet formation as rock grains crystallize around distant star HOPS-315.

"This is a big step in understanding the outer solar system," team leader Rosemary Pike from the Center for Astrophysics | ...

Hegemony, Part 2' and 'Wedding Bell Blues' make for a peculiar pairing, highlighting different struggles 'Strange New Worlds' ...

The astronomers observed hot minerals just beginning to solidify – the first specks of planet-forming material, the ...

Researchers use the Subaru Telescope in Hawaii to find a small object on the outer edge of the Solar System. Nicknamed ...

While astronomers have long searched for a mysterious ninth planet lurking beyond Pluto, a recent discovery is turning that ...

International astronomers have for the first time witnessed the birth of a planetary system beyond Earth's sun that could one day resemble our own.

Astronomers discover Ammonite, a rare icy object beyond Pluto, challenging Planet Nine theory and offering clues to the solar system’s ancient origins.

In a groundbreaking discoverypublished in The Planetary Science Journal, a team of astronomers led by the Center for ...

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

According to the team's measurements, the comet's nucleus is around a whopping 128 kilometers (80 miles) across, making it bigger than the state of Rhode Island, and far larger than its closest ...