Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

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

Typically, telescopes are synonymous with bringing far-off objects close, but the newest member of the solar system was discovered using wide-field imaging. The Subaru Telescope has spotted a distant ...

For only the third time in recorded history, an interstellar object has crossed into our solar system, creating quite the ...

Astronomers have discovered a "fossil" world lying in the outskirts of the solar system, according to new research.

CAPE CANAVERAL, Fla. (AP) — Astronomers have discovered a rare in-sync solar system with six planets moving like a grand cosmic orchestra, untouched by outside forces since their birth billions ...

The Subaru Telescope has made an exciting discovery: a small body beyond Pluto, with implications for the formation, ...

Our Solar System possibly survived a supernova because of how the Sun formed The gas that produce stars also cushion them from the blast of nearby supernovae.

The US National Science Foundation (NSF) Daniel K. Inouye Solar Telescope in Hawaii, the largest solar telescope globally, has reached a key milestone. The Visible Tunable Filtergraph (VTF), a ...

A solar flare is a burst of radiation on the sun, according to NASA. They are the most powerful explosions in the solar system, with the biggest ones having as much energy as a billion hydrogen bombs.