For now, the object announced by the Vera C. Rubin Observatory team earlier this week only goes by its provisional ...

JWST measurements reveal unusual chemical signatures in 3I/ATLAS, suggesting the interstellar comet formed in an extremely ...

Solar twin refractory depletion -- why the Sun carries fewer calcium, aluminum, and titanium than 80 percent of similar stars ...

A whole museum building stands in as the Sun for a scale model of the Solar System that stretches across town. That Sun ...

In short, a regular planet has enough gravitational pull to clear out the space around it, whereas dwarf planets do not.

"This is the first time we've been able to confirm that water clouds are becoming thinner and thicker on a nearby world." ...

Astronomers using the Vera C. Rubin Observatory found 2026 ED138, a distant object that could become the solar system's sixth ...

A new discovery in the outer reaches of the solar system could expand the small group of officially recognized dwarf planets.

Learn what makes a dwarf planet, which worlds beyond Neptune are officially recognized, and why distant objects like Quaoar remain candidates.

Clip: S53 | 6m 52s | Meet 2026 ED138, an incredibly bright object beyond Pluto, billions of miles away from Earth. (6m 52s) ...

The Vera C. Rubin Observatory has found what might be a new dwarf planet in our solar system, orbiting the sun on an inclined ...

Two zombie exoplanets that rose from the grave to shuffle through the gory remains of their fellow planets may just agree ...