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

Astronomers have already warned that SpaceX's Starlink satellite network contributes to blemishes on images from ...

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

The Wide Field Camera 3 instrument gives the telescope the ability to capture a panchromatic view of objects flying through ...

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 ...

A team of astronomers using a variety of ground and space-based telescopes including the W. M. Keck Observatory on Maunakea, ...

Hubble images of interstellar object 3I/ATLAS reveal a sunward anti-tail, showing a teardrop-shaped coma with separated ...

R esearchers have calculated one of the most precise estimates for the expansion rate of the universe today, and it turns out ...

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

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

There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...