Why do all planets in our solar system orbit the Sun the same way? This documentary unravels the cosmic forces, from the solar system’s violent birth to the hidden laws of physics, that keep the ...

I/ATLAS is a fast, ancient interstellar object. Its odd features fuel both scientific study and speculation. On July 1, ...

Saturn is one of the most mesmerizing planets in our Solar System. Famous for its iconic rings, it is also a world of extreme ...

This was an unexpected and coincidental discovery of a small, icy, egg-shaped planet in the outermost reaches of our solar ...

"The profile of the occultation was most consistent with it being a new satellite — a new moon — going around Quaoar." ...

When 1I/'Oumuamua was first spotted in 2017, astronomers quickly determined that it came from outside the solar system. But ...

White dwarfs may still host habitable planets. Conditions like tidal heating and migration shape their potential for life. The Sun will eventually die. This will occur when it exhausts the hydrogen ...

Comet 3I/ATLAS is the third confirmed interstellar object to pass through our solar system, following the discovery of ...

The dwarf planet Pluto and its five known natural satellites (Charon, Styx, Nix, Kerberos, and Hydra) may be frigid, but ...

Scientists are steadily ruling out habitable conditions on the seven planets of the star Trappist-1. On one of the worlds, a ...

The debate over the existence of extraterrestrial life touches literature, religion, and science in 17th century Europe.

In 40,000 years, long after its mission is over, NASA's Voyager 1 spacecraft will have a close encounter with Gliese 445. It ...