BEIJING -- Chinese scientists have successfully achieved the first direct mass measurement of a free-floating object, confirming that it is a planet with a mass comparable to that of Saturn. This key ...

Massive observatories and orbiting telescopes like the Hubble typically dominate the conversation when it comes to deep space ...

For past 12 years, semi-retired Chris Vaughan has been circulating summary of celestial happenings on Sunday afternoons ...

While the raw speed isn't too impressive, it was achieved using a laser with less power than an energy-saving lightbulb.

Astronomers are nearing the discovery of Planet X, a mysterious celestial body that could reshape our understanding of the ...

"Do we react for everything which has a chance to reach the ground? Or do we react only for the very large objects, as we did ...

Earth is about to see three total solar eclipses in just under two years, with each successive path of totality moving west ...

Scientists outline the scientific and technical case for building a northern-hemisphere 30-meter telescope at La Palma to support time-domain and multi-messenger astronomy.

Astronomers report that the Champagne Cluster is actually two galaxy clusters in the process of merging, based on X-ray, optical, and spectroscopic observations published in 2025 ...

In July, researchers using the NASA-funded Asteroid Terrestrial-impact Last Alert System survey telescope in Chile made an ...