Attack on Pearl Harbor, December 7, 1941
Sunset over the Davis Mountains
Cosmic ray shower
leonid meteor, 2009

StarDate Radio: December 8 — War Work

As 1941 neared its end, McDonald Observatory was riding high. It had been dedicated just two and a half years...More »

Stargazing: December 7

The faint constellation Sculptor, the sculptor’s workshop, passes across the south and southwest on December evenings. It was one of...More »

StarDate Radio: December 7 — Off to War

AUDIO: The Japanese have attacked Pearl Harbor, Hawaii, by air, President Roosevelt has just announced.

75 years ago today, the...More »

StarDate Radio: December 6 — Guiding Lights II

Wallace Eckert was ahead of his time. Eckert was an astronomer at Columbia, who specialized in calculating the orbits of...More »

Stargazing: December 6

The Moon reaches first-quarter tonight, signifying that it is one quarter of the way through its month-long cycle of phases....More »

Stargazing: December 5

Three planets line up to the lower right of the Moon tonight. Mars is closest to the Moon, with Venus,...More »

StarDate Radio: December 5 — Guiding Lights

The Moon stands high in the south not long after sunset this evening, with three planets trailing to its lower...More »

StarDate Radio: December 4 — Moon and Mars

The Moon slides past the planet Mars tonight. Mars looks like a bright orange star close to the left of...More »

Stargazing: December 4

The Moon slides past the planet Mars tonight. Mars looks like a bright orange star close to the left of...More »

Stargazing: December 3

Capricornus, the sea-goat, is low in the south and southwest as night falls. Its leading stars outline the bottom of...More »

StarDate Radio: December 3 — Moon and Capricornus

Learning the constellations can be hard work. Most of their connect-the-dots patterns are faint and difficult to find, especially from...More »

StarDate Radio: December 2 — Moon and Venus

The Moon and the planet Venus form a beautiful pairing early tonight. Venus is the brilliant “evening star,” not far...More »

Stargazing: December 2

The Moon and the planet Venus form a beautiful pairing early tonight. Venus is the brilliant “evening star” not far...More »

Current Magazine

cover of November-December issue

Learn how an eclipse influenced a presidential election more than a century ago, and get up to date on Eta Carinae, a closely studied star that could explode as a supernova.

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