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An orange supergiant star 650 light-years away in the constellation Orion. It forms Orion’s shoulder, and is the constellation’s second-brightest star, after Rigel. It is expected to end its life with a titanic explosion known as a supernova.


Orion, the Hunter

Orion, the Hunter May 25, 2010

Radio Programs

Future Blasts Bright stars with brighter futures April 7, 2021

Betelgeuse Conflicting reasons for a big fade December 14, 2020

Busy Betelgeuse A bright star fades a bit March 26, 2020

Bad Homes Two stars that are bad homes for life February 1, 2019

Seeing Orange Puffing up like orange balloons April 1, 2017

Giant Cannibal A giant star becomes a cannibal March 16, 2017

Betelgeuse Explodes Death gets closer for a giant star December 30, 2016

Birth of a Giant Locating the birthplace of a giant December 29, 2016

Moon and Betelgeuse The life and times of a supergiant November 16, 2016

Interferometry Taking the measure of a giant February 8, 2016

Featured Images

Images of Betelgeuse before and after it began fading

Fading Away February 14, 2020

The constellation Orion

Land of the Supergiants January 4, 2020


Bad Homes January 31, 2019

Betelgeuse, Aldebaran, and the Sun

Seeing Orange April 1, 2017