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 ...

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 ...

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

Due to the costs and duration of the Hubble project, NASA was under pressure. At the end of 1995, it released a photo that ...

A new NASA-led study found that the increasing number of satellites in low-Earth orbit could ruin up to 96% of images from ...

Fleets of satellites interfere with snapshots taken by Earth-bound observatories. But a new study suggests these orbiters ...

The new Hubble image shows a compact, bright nucleus wrapped in clouds of gas and dust, which is called the coma ...

The Atacama Cosmology Telescope in Chile not only confirmed one of the greatest mysteries in the universe—it also ruled out ...