Analysis of an ancient meteorite suggests that rocky planets both near and distant from the sun may have formed at the same ...

It is Betelgeuse and for hundreds of years astronomers have puzzled why its twinkle grows lighter and then dimmer over time.

The star is surrounded by a protoplanetary disk, and this disk is the first evidence of debris condensing into what will ...

Astronomers may have caught a still-forming planet in action, carving out an intricate pattern in the gas and dust that ...

Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a ...

A tiny object far beyond Pluto, newly discovered by the Subaru Telescope, could reshape our understanding of the early Solar ...

Explore the fascinating motion of our Solar System as it journeys not just around the Sun, but also through the vastness of the Milky Way galaxy and the Universe beyond. This in-depth video unpacks ...

For centuries, humanity believed that Earth was the center of the universe, a view championed by Aristotle and Ptolemy. But ...

A newly discovered comet, 3I/ATLAS, may be the most ancient visitor ever detected, potentially older than our solar system ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar object to pass through our solar system.

A mysterious object the size of Manhattan, originating from outside our Solar System, has been spotted by astronomers. Get any of our free email newsletters — news headlines, sports, arts ...