"The natural question that comes up is: how many more space telescopes will be affected when all these constellations are ...

Comet 3I/ATLAS will get closest to Earth on Dec. 19, and astronomers will be watching.

Astronomers at the University of California, Santa Cruz, and UCLA will develop a next-generation instrument for detecting and ...

Interstellar object 3I/ATLAS will fly by Earth on December 19, 2025, and a few key details can help amateur observers spot the visitor in the sky ...

On a mountaintop in northern Chile, the world’s largest digital camera is preparing to power up. Its mission is simple yet ambitious — to photograph the entire night sky in extreme detail and unlock ...

The Extremely Large Telescope (ELT), now under construction in the Chilean Andes, is set to revolutionize the field of ...

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

Go outside right now. What’s the farthest thing you can see? A tree? A bird? What about the Moon? It’s 250,000 miles away. The Sun is 400 times farther than that, at nearly 100 million miles (but ...

With construction complete, the telescope will now move into final testing. Following testing, Roman will be packaged and ...

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

It is the colours of a sunset that inspire Joseph Anderson, an astronomer at the European Southern Observatory (ESO) in the high Atacama desert, in northern Chile. “They start off very blue and ...

Study using radio telescope data finds most geostationary satellites emit little unintended radio interference in frequencies used for astronomy ...