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

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

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

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

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

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

Proliferating satellites are beginning to harm the science work of the beloved Hubble Space Telescope and other observatories ...

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

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

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

Light from the half a million satellites that humanity is planning to launch into Earth's orbit in the coming years could ...

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