Our solar system appears beautifully organized, but its stability is actually the result of an incredibly delicate cosmic equilibrium developed over billions of years. Toying with the positioning of ...

The Sun may have swallowed a super-Earth in its early stages. A recent study suggests this event left detectable traces ...

Spread the loveImagine a newborn – not a human infant, but a planet, still swaddled in the cosmic dust and gas from which it ...

Often more than 100 million times dimmer than objects visible to the unaided eye, TNOs are so small that even with NASA’s ...

As a kid in the 1990s, I chose Saturn as my favorite planet because of its rings. They’re so perfectly circular and solid-looking, like a disk ...

When you look up at the night sky, countless stars are twinkling. The stars visible to the naked eye all seem quiet, and at ...

In a recent study, Santos-Sanz and his colleagues used the James Webb Space Telescope to watch the same body, now known as ...

A California-based astrophysicist presented a new theory on Monday to explain why Venus, the planet most like Earth in size, mass and structure, lacks its own moon.

Because planets are born in the haze of material that surrounds young stars, it’s extremely difficult to study an exoplanet’s newborn stage. The fact that astronomers found Elias 2-24 b at all is ...

An asteroid or comet chunk left a huge new crater on the moon that is teaching scientists the extent of how such an impact affects the soil. Credit: NASA / LRO Nobody saw it happen. No alarm sounded.

Explore eight near-Earth asteroids that nearly hit Earth, and learn how close passes improve planetary defense and detection.

Beyond Neptune, where planet formation halted 4.6 billion years ago, Webb and Hubble counted the debris. The smallest objects ...