A retraction intends to bring to an end the acrimonious debate about the validity of the 15-year old findings that threatened ...

The stellar companion may help explain why the brightness of Betelgeuse, the red supergiant, is open to so much variation.

What could we choose as the seven most remarkable celestial objects visible either with our eyes or with a small telescope?

Scientists have issued a concerning update on a mystery interstellar object travelling through our solar system.