Using data from the Vera C Rubin Observatory, experts have revealed just how big the object, dubbed 3I/ATLAS, really is.

As scientists wait for the asteroid to reappear, its revised trajectory is now drawing attention to another possible target: ...

The object, named NGC 6099 HLX-1, first appeared in 2009. Chandra caught the bright X-ray flash near the galaxy’s outskirts.

Astronomers may have found a rare intermediate-mass black hole outside galaxy NGC 6099—offering clues about how bigger black holes form.

64D. [Coneheads, e.g., for short] are ETS in the 1993 movie “Coneheads,” adapted from a “Saturday Night Live” sketch, in ...

These luminous trails are caused by satellites. Specifically, the growing number of “megaconstellations” launched into low ...