Two more of NASA's space telescopes got another look at comet 3I/ATLAS, an interstellar interloper that captured the world's ...

May the oldest comet on record also be one of the most bizarre? The interstellar visitor 3I/ATLAS, found on July 1, 2025, is rewriting the book on what a comet from outside our Solar System will do.

Astronomers have imaged a huge expanding bubble of gas and dust surrounding a red supergiant star — the largest such bubble ...

In the past decade, the European Space Agency's Gaia space telescope has revealed the nature, history, and behavior of ...

The findings, published in the journal Astronomy and Astrophysics, come from a team led by Mark Siebert of Chalmers. Using ...

Two of the objects in the arrangement are cold brown dwarfs, which will serve as a benchmark for others throughout the Milky ...

Lenses aren’t the only retro tech that the NASA photographers work with during their months-long stint on the ISS. Pettit ...

A shooting star streaks across the Milky Way's luminous arm, its brilliant trail dissolving into the velvet darkness that ...

High in the Milky Way, a dying giant has thrown astronomers a cosmic curveball. A star known as DFK 52, sitting in the ...

A rare black moon will happen tonight Aug. 22-23. Don't worry too much if you miss it, although it won't happen again for ...

Two colliding galaxies have been found to be reorganizing their dwarf satellites, potentially solving a major conundrum ...