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

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

"It means cleaning house, narrowing the viable paths forward, and no longer spending energy on what are evidently dead ends." ...

Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...

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

NASA is sounding a clear alarm about the way SpaceX is reshaping low orbit, warning that the company’s satellite swarms and ...

Hubble Space Telescope can "only see the universe in shades of grey," according to NASA's Goddard Space Flight Center. Learn how the imagery is processed into amazing color views of the cosmos. Credit ...

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 ...

This NASA/ESA Hubble Space Telescope image features the spiral galaxy NGC 4535, which is situated about 50 million ...

The final integration of the telescope's major observatory components took place on Nov. 25 inside NASA's Goddard Space ...

A NASA study predicts that 96% of the images from the ARRAKIHS mission will be contaminated by the light from the more than ...

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