Watch live view of the Comet C/2023 A3 Tsuchinshan-ATLAS as seen from the Virtual Telescope Project facility in Manciano, Italy.

Webb reveals a fiery starburst in the Cigar Galaxy — Space photo of the week James Webb Space Telescope reveals thick cosmic dust of Sagittarius B2, the most enormous star-forming cloud in the Milky Way — Space photo of the week 'Puzzling' object ...

The most powerful X-ray telescope ever built has reached its landmark 25th anniversary in space — but back on Earth, astronomers worry that its future is very much in doubt. Supporters of the Chandra X-ray Observatory say the school bus-sized instrument ...

Watch live as The Virtual Telescope Project provides a view of the interstellar comet 3I/ATLAS as seen from telescopes in Italy.

The Atacama Cosmology Telescope in Chile has released its final batch of data after 15 years — and it proves that the Hubble tension is very real.

The final integration of the telescope's major observatory components took place on Nov. 25 inside NASA's Goddard Space Flight Center in Greenbelt, Maryland, where engineers brought together the spacecraft and telescope assemblies in the facility's largest clean room, according to a statement from NASA.