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The brightest star of the zodiacal constellation Scorpius. It is a binary system, consisting of an orange supergiant star that is many times more massive than the Sun, and a smaller companion that is hidden in the primary star’s glare. It is about 550 light-years away.

Radio Programs

Moon and Companions A star that might not be there October 2, 2019

Moon and Companions A star’s unseeable brightness July 12, 2019

Moon and Antares An unsteady stellar giant June 15, 2019

Moon and Antares One of the biggest of the big April 21, 2019

Moon and Antares Peeling the layers of a star February 25, 2019

Moon and Antares Impressive groups of stars September 15, 2018

Moon and Antares Juicing up the heart of the scorpion August 18, 2018

Moon and Antares A “heart murmur” for the scorpion June 25, 2018

Moon and Antares A stellar weight-loss plan May 29, 2018

Red Rivalry Colorful rivals in the dawn sky February 8, 2018

Moon and Companions Cranking up a giant star September 25, 2017

Moon and Antares Changing the view of the scorpion June 6, 2017

Moon, Antares, Saturn Subtle color for a giant planet January 22, 2017

Mars and Antares Rivals line up in the evening sky August 23, 2016

Scorpius The scorpion skitters by July 21, 2016

Moon, Saturn, and Antares A stellar weight-loss plan August 21, 2015

Moon, Saturn, Antares A star of the first magnitude July 25, 2015

Two Ways to Die Two ways to make a supernova June 14, 2015

Moon and Companions A giant star hides in plain sight May 4, 2015

Moon, Saturn, and Antares Gazing at a star among stars April 7, 2015

Featured Images

artist's concept of antares

Splotchy Giant June 25, 2018

A view of the busy Milky Way

Busy Galaxy July 24, 2014

Antares, brightest star of Scorpius, shines through the rings of Saturn

Peeking Giant January 28, 2011