ALMA view of a sunspot
Apollo 17 commander Eugene Cernan poses on the Moon in 1972
sequence of images depicting the merger of M31 and Milky Way galaxies
Infrared view of Orion Nebula and surrounding clouds of gas and dust
Artist's concept of 2016 WF9

StarDate Radio: January 20 — More Fornax

There’s no fountain of youth to make people look younger. But there is one for stars. It’s a process that...More »

StarDate Radio: January 19 — Fornax

Almost a century ago, astronomers partitioned the celestial sphere into 88 constellations. Most of them — the famous ones —...More »

Stargazing: January 19

Fornax, the furnace, is quite low in the south as night falls right now. Created in the 17th century, it...More »

StarDate Radio: January 18 — Fast Bursts

When astronomers find a new type of object that goes “boom,” it takes a while to explain it. They have...More »

Stargazing: January 18

Mercury, the solar system’s smallest planet, will be at its greatest distance from the Sun in the morning sky tomorrow....More »

StarDate Radio: January 17 — Super Supernovae II

A supernova that was discovered a couple of years ago has astronomers doing a lot of head scratching. The explosion...More »

Stargazing: January 17

The Orion Nebula is a fuzzy patch of light just below the three bright stars that represents Orion’s Belt. The...More »

StarDate Radio: January 16 — Super Supernovae

Every supernova is a brilliant beacon — a stellar explosion that can outshine an entire galaxy. But in recent years,...More »

Stargazing: January 16

One of the dimmest but best-known constellations of the zodiac is in fine view right now. Aries, the ram, stands...More »

StarDate Radio: January 15 — Scary Asteroids

Astronomers compile catalogs of all kinds of objects: variable stars, black holes, binary stars, and many others. One of their...More »

Stargazing: January 15

From southern latitudes of the U.S., the two brightest stars in the night sky line up in the south tonight....More »

StarDate Radio: January 14 — Moon and Regulus

Regulus is one of the brightest stars in the night sky, so people have been looking at it since the...More »

Stargazing: January 14

Look for Regulus, the heart of Leo, quite near the Moon as they climb into view in mid evening, and...More »

Current Magazine

cover of the 2017 Sky Almanac

Our 2017 Sky Almanac brings you a year's worth of skywatching tips, skymaps, anniversaries in astronomy and space flight, and more.

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