The image of supermassive black hole Sagittarius A * was created using data from the Event Horizon Telescope Collaboration.

The Atacama Large Millimeter/submillimeter Array (ALMA) has been used to discover REBELS-25, a Milky Way-like galaxy from the ...

A mystery interstellar object has been identified as the "oldest comet ever seen", according to scientists. The Oxford ...

A week and a half after its discovery, there are clues about the origin and age of the interstellar comet 3I/ATLAS – and ...

British astronomers have discovered a mysterious object from space that is likely the oldest comet ever observed.This comet ...

Greetings, stargazers. Emission nebulae are the subject of many of the most spectacular astrophotographs published in the last decade. Although there are many subcategories of nebulae, they all ...

A mystery interstellar object discovered last week is likely to be the oldest comet ever seen – possibly predating our solar system by more than three billion years, researchers say. The "water ...

The moon will be 99% full Friday night, and with mostly clear skies expected for Louisville in the evening, tonight is a good ...

New research presented at the Royal Astronomical Society's National Astronomy Meeting (NAM) in Durham suggests a ...

Researchers at Oxford have discovered that comet 3I/ATLAS may be over 7 billion years old, making it the oldest one we've ...

Several planets stand still in the sky, Titan’s shadow transits Saturn, and Venus gives Taurus a second eye in the sky this ...

A newly discovered comet, 3I/ATLAS, may be the most ancient visitor ever detected, potentially older than our solar system itself. Unlike previous interstellar objects, this ice-rich comet seems to ...