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StarDate Radio: December 21 — Winter Solstice

Winter begins in the northern hemisphere this afternoon, as the Sun appears farthest south in our sky for the year — a point known as the December solstice. More »

StarDate Radio: December 20 — Deep Vision

If you gaze long enough into a dark, starry sky — a sky that’s not polluted by streetlights or the Moon — it seems like you can see forever. More »

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Stargazing: December 20

If you gaze long enough into a dark sky, it seems like you can see forever. That’s not quite the case, but you can come close: The most distant object that’s easily visible to the unaided eye, the Andromeda galaxy, is 2.5 million light-years away. More »

StarDate Radio: December 19 — More Moon and Saturn

The Norse gods had a big problem. More »

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Stargazing: December 19

The bright planet Saturn stands close to the upper right of the Moon at dawn tomorrow. Saturn has more than 60 known moons of its own, including one with hydrocarbon lakes on its surface and another that shoots geyers of water into space. More »

StarDate Radio: December 18 — Moon and Saturn

A bare wisp of a crescent Moon shines down on the planet Saturn at dawn tomorrow. More »

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Stargazing: December 18

A bare wisp of a crescent Moon shines down on the planet Saturn at dawn tomorrow. Saturn is close to the lower left of the Moon, and looks like a bright golden star. More »

StarDate Radio: December 17 — Distant Neighbors

It’s lonely out beyond the edge of the galaxy. More »

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Stargazing: December 17

The Moon will will stand just a few degrees above Zubenelgenubi, the second-brightest stars of Libra, the balance scales, at dawn tomorrow. The constellation’s brightest star, Zubeneschamali, will be farther to the right of the Moon. More »

Special Features

The History of the Telescope Hobby-Eberly Dark Energy Experiment
Black Holes Encyclopedia Texas Native Skies

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