I/ATLAS is a fast, ancient interstellar object. Its odd features fuel both scientific study and speculation. On July 1, astronomers detected a strange, fast-moving object racing toward the Sun. Named ...

Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an ...

A new trans-Neptunian object, 2017 OF201, has been found with a vast orbit and potential dwarf planet size. The finding hints ...

Today, let's talk about a super mysterious celestial body in the solar system - Sedna. Did you know that Sedna takes about 11 ...

One of the great puzzles of modern astronomy is whether the Solar System hides a distant undiscovered planet. If this planet were relatively near — orbiting close to or within the orbit of Neptune — ...

A new Tatooine-like planet outside the solar system may orbit two failed stars, scientists reported Wednesday. Located about 120 light years away, the exoplanet appears to take an unusual path around ...