As it orbits the sun once every 25,000 years, the celestial body 2017 OF201 travels beyond the Kuiper Belt into a region thought to be largely devoid of objects

U.S. astronomers hunting for "Planet Nine" have instead stumbled on what appears to be a new dwarf planet in the solar system's outer reaches.

Astronomers have spotted a star acting unlike any other ever observed as it unleashes a curious combination of radio waves and X-rays, pegging it as an exotic member of a class of celestial objects first identified only three years ago.

Researchers traced long, bright radio pulses, combined with X-rays, to an intriguing cosmic object 15,000 light-years from Earth, according to a new study.

A new 8K camera system at the Vacuum Tower Telescope in Tenerife captures images of the Sun's surface in stunning detail.

An international team of astronomers has discovered 25 new quasars by analyzing multiwavelength data from various surveys. All the newfound quasars were detected at redshifts greater than 4.6. The findings are detailed in a research paper published May 21 on the arXiv pre-print server.

Astronomers have just discovered a new celestial body in our solar system that could challenge major space theory. 2017 OF201 is the name of a trans-Neptunian object (TNO) which has been found floating around in our galaxy far, far away.