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Radio’s Guide to the Universe

StarDate announcer Sandy WoodStarDate debuted in 1978, making it the longest-running national radio science feature in the country. It airs on more than 300 radio stations.

StarDate tells listeners what to look for in the night sky, and explains the science, history, and skylore behind these objects. It also keeps listeners up to date on the latest research findings and space missions. And it offers tidbits on astronomy in the arts and popular culture, providing ways for people with diverse interests to keep up with the universe.

StarDate is a production of The University of Texas McDonald Observatory, which also produces the Spanish-language Universo Online web site and the bi-monthly StarDate magazine.

Today on StarDate

December 5-11: Off to war

The United States entered World War II 75 years ago this week, with the Japanese attack on Pearl Harbor. Many astronomers joined the war effort, while a few kept their eyes on the stars. Join us for this and more.

December 12-18: Dark giant

A galaxy that glides across the southern sky on December nights is home to one of the biggest black holes yet seen — one that’s thousands of times bigger than the central black hole in the Milky Way. Join us for this and more.

December 19-25: Holiday skies

This is a great week to enjoy the beautiful night sky, as the Moon passes by a bright star and planet, and the brilliant constellations of winter climb into view. Join us for holiday skies, plus a preview of spring skies.

December 26-31: Deep freeze

The realm beyond the Sun’s major planets is filled with frigid balls of ice and rock, including the most famous of them all, Pluto. Join us for Pluto and much more in the deep freeze of the outer solar system.