Alien planetary systems appear to fall into two distinct families, with some enjoying relatively calm orbits while others ...

The Sun's demise in 7–8 billion years will be accompanied by a mass ejection, causing orbital chaos among the planets beyond ...

Euclid space telescope discovered its first previously unknown comet in images taken between September 16 and 24, 2026.

Planetary systems like our solar system are born within a disk of gas and dust (protoplanetary disk) surrounding a newly ...

Chapters: 0:00 Why planet 9? 1:30 How did we determine that Planet 9 may exist? 4:30 Why haven't we seen Planet 9? 6:06 ...

"Family feels kind of suffocating.""I can't help but feel hurt by my parents' words."Have you ever worried about things like ...

As far-fetched as it may seem, quirks of orbital mechanics could allow hundreds of planets to be packed around a star ...

A rare system of six planets, all kept perfectly in balance, has been found around star HD110067, just 100 lightyears away.

Astronomers have identified two broad families of planetary systems whose differences are linked to the stars they orbit. One ...

Computer modeling has shown that the Solar System may lose its current structure much earlier than previous calculations had ...

In the process of thinking about "Why can sci-fi movies head to their destination stars without hesitation?", I realized that ...

An amateur astronomer uses AI agents to identify a potential super-Earth in NASA TESS data, prompting renewed scrutiny of a ...