Astronomers using the NASA/ESA/CSA James Webb Space Telescope have for the first time identified hydrogen sulfide gas in the atmospheres of three gas-giant exoplanets orbiting HR 8799, a ...

Researchers report that ASASSN-24fw dimmed for nine months due to a ringed companion, likely a brown dwarf or super-Jupiter, based on observations published by Universe Today and the Royal ...

This enormous chain of hundreds of galaxies—a cosmic filament—is twisting through space 400 million light-years away ...

The Dark Energy Survey (DES) offers new insights into cosmic expansion and dark energy, gathered over six years and 758 nights of observations.

Astronomers watched a massive star in the Andromeda Galaxy vanish over a decade, providing rare evidence of a "failed supernova" forming a black hole without exploding.

Astronomers observed a heart-shaped gas and dust cloud around red giant Mira A before Valentine’s Day, using data from ESO’s Very Large Telescope and ALMA in Chile.

In 2014, a NASA telescope observed that the infrared light emitted by a massive star in the Andromeda galaxy gradually grew brighter. The star glowed more intensely with infrared light for around ...

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.

A new radio survey reveals that the Milky Way’s magnetic field is intricate, widespread, and deeply connected to how the galaxy is organized.

Explore a hidden Atlanta gem where you can see a real Apollo spacecraft and enjoy an immersive planetarium experience, all without spending a dime ...

Astronomers have uncovered a distant planetary system that flips a long-standing rule of planet formation on its head. Around the small red dwarf star LHS 1903, scientists expected to find rocky ...

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