Astronomers have spotted a heart in the cosmos — not Cupid's doing, but a dying star shedding its layers — just in time for Valentine's Day.

The international astronomical community is celebrating. The mega-project by AES Andes, a subsidiary of the U.S.-based AES ...

"We were very surprised to see this structure," said astrophysicist Theo Khouri of Sweden’s Chalmers University of Technology.

Since the 1990s, astronomers have found a handful of other dwarf planets in the belt, such as Eris and Sedna, along with ...

A newly found comet is well on its way toward the sun, set to reach its nearest point come spring. The comet, dubbed C/2026 A1, was discovered by a group of French scientists at a Chilean observatory ...

A “disappearing” star in the Andromeda galaxy is the closest and best candidate for a newborn black hole that astronomers have ever seen ...

First its rotation slowed between March and May 2017, taking 46 hours to complete a spin where it had once taken only 20 hours. This occurred as the comet neared its closest point to the sun, roughly ...

Proof-of-principle experiment resolved the shock waves produced by the Shenzhou-15 module when it re-entered the atmosphere ...

After the Feb. 17 'ring of fire', the next annular solar eclipse will occur on Feb. 6, 2027, and will be visible from locations in Chile, Argentina, Uruguay, Brazil, Cote d'Ivoire, Ghana, Togo, Benin ...

The green hydrogen and ammonia project would have increased light pollution at ESO’s Paranal Observatory in Chile’s Atacama Desert ...

As next-generation telescopes map this outer frontier, astronomers are bracing for discoveries that could reveal hidden planets, strange structures, and clues to the solar system’s chaotic youth.

One of the longest stellar dimming events ever observed was likely caused by the gigantic saucer-like rings of either an unseen brown dwarf or "super-Jupiter" blocking its host star's light, ...