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The brightest star of the constellation Boötes. It is an orange-star about 37 light-years from Earth.

Radio Programs

Watching the Bear Keeping an eye on the great bear August 28, 2016

Arcturus Extra pounds cut billions of years June 12, 2016

Arcturus Measuring the girth of a big star March 6, 2015

Bright and Fast A bright star that’s in a hurry April 14, 2014

Colorful Arcturus Adding some color to a bright star June 22, 2013

Arcturus Tracing a star’s origins August 27, 2012

Bear Watcher Keeping an eye on the big bear August 26, 2012