The Vera Rubin Observatory sits atop the mountain Cerro Pachón in northern Chile.

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

Scientists have issued a concerning update on a mystery interstellar object travelling through our solar system.

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

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

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

"Some satellites were detected emitting in bands where no signals are supposed to be present at all, such as the 703 ...

The comet 3I/ATLAS was discovered just as the Vera C. Rubin Observatory was gearing up to carry out its initial observations of the heavens, dovetailing with the LSST's expected discovery of many more ...

The problem now is there’s a multiplying number of companies launching these things,” Rick Fienberg said. “And there are no formal regulations for visual brightness of satellites.” ...