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

Data from Chandra X-ray telescope and James Webb Space Telescopes have revealed a black hole from 470 million years after the ...

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

The image of supermassive black hole Sagittarius A * was created using data from the Event Horizon Telescope Collaboration.

This rare interstellar visitor (C/2025 N1) is visible now! While too faint for the naked eye, amateur astronomers can easily ...

The comet will come much closer to Jupiter in March, zipping within 33 million miles (53 million kilometers). It will be the ...

Radio astronomy has a pollution problem. Satellites thousands of kilometers overhead, designed to broadcast communications or ...

An exponential increase in the number of satellites placed in low-Earth orbit has brought advances in telecommunications ...

UTC, astronomers at the Armagh Observatory and Planetarium (AOP) have captured what is believed to be the first video ...

December 15, 2025 - WASHINGTON — The U.S. Postal Service has announced the Priority Mail and Priority Mail Express stamps it will release in 2026. There will be additional stamp subjects to be ...

For the first time, astronomers have captured the brilliance of a superluminous supernova via gravitational lensing.

Even the best telescopes can’t see exoplanets. It’s all about watching for jiggly stars, blue shifts, and transits.