Discovered on July 1 by the NASA-funded ATLAS telescope in Chile, 3I/ATLAS is only the third confirmed visitor from another ...

The Hubble Space Telescope has turned its sharp eye toward a ghostly swirl of stars and gas known as the "Lost Galaxy," given ...

High up in the Chilean Andes, the Extremely Large Telescope (ELT) is set to become the world's largest optical telescope and ...

Astronomers have long been concerned about reflections from satellites showing up in images taken by telescopes and other ...

New 3I/ATLAS images from NASA and the ESA suggest the interstellar comet is active as it approaches Earth in December.

The NASA/ESA/CSA James Webb Space Telescope has captured an amazing view of the iconic Hubble Ultra Deep Field using its MIRI ...

According to NASA, Hubble took its latest photo of 3I/ATLAS on November 30 using its Wide Field Camera 3 instrument. At that ...

Light pollution from the exploding number of satellites orbiting Earth is making it harder to peer into space.

More than half a million satellites are planned to launch by the end of the 2030s, and simulations suggest they will have a severe impact on space-based astronomy ...

Footage from NASA/ESA Hubble Space Telescope that celebrates 35 years in space. Images of Mars, planetary nebula NGC 2899, ...

NASA has completed assembly of the Nancy Grace Roman Space Telescope, preparing for final testing and launch by May 2027 to ...

NASA's next big eye on the cosmos is now fully assembled. On Nov. 25, technicians joined the inner and outer portions of the ...