Data from the James Webb Space Telescope and other observatories suggests a supervolcanic exomoon may lurk around the giant ...

WASHINGTON (Reuters) -Just as Earth orbits the sun, most planets discovered beyond our solar system orbit a host star.

Astronomers have yet to find irrefutable proof for any natural satellites of exoplanets—so-called exomoons—but as ...

While Loeb is known for making some controversial claims and predictions in the past, he is still a very respected astronomer ...

WISPIT 2b was first detected using the European Southern Observatory's Very Large Telescope Spectro-Polarimetric ...

A recent study by Princeton University astronomers suggests the possible existence of a previously undetected planet in our ...

Recently, scientists discovered a number of new comets, two of which will be passing by Earth in October. Here's everything ...

I/ATLAS's chemical composition, upcoming invisibility, and trajectory suggest to experts that it is alien technology, but ...

Astronomers spotted the celestial standoff in the heart of the galaxy OJ287, around five billion light-years from Earth.

Astrophotographer Brennan Gilmore has captured spectacular views of the solar wind stripping a vast section from C/2025 A6 ...

Comets SWAN and Lemmon will both swing by Earth and appear bright in the sky near the end of October. Here’s how to see them.