Hubble Space Telescope view of M63
Lunar Orbiter 1 views of Earthrise over the Moon
The bow of Sagittarius
2009 view of Perseid meteors

StarDate Radio: August 29 — Dark Alternatives

So far, the leading candidate in the search for dark matter has wimped out. No one is giving up on...More »

StarDate Radio: August 28 — Watching the Bear

This is one of the best times of year to watch the Big Dipper. It’s in the northwest as night...More »

Stargazing: August 28

From the handle of the Big Dipper, you can arc to Arcturus. In other words, follow the curve of the...More »

StarDate Radio: August 27 — Zenith

The world’s biggest single-dish radio telescope always points straight up. The Arecibo telescope in Puerto Rico is built in a...More »

Stargazing: August 27

From the northern half of the U.S., two bright stars are passing through the zenith. From the latitude of about...More »

StarDate Radio: August 26 — Sunflower Galaxy

We live in a galaxy-eat-galaxy universe. Big galaxies frequently grab smaller ones, then make the stars and gas of the...More »

Stargazing: August 26

M63 is a beautiful spiral galaxy that resembles a sunflower. It’s 27 million light-years away, and it’s about the same...More »

StarDate Radio: August 25 — Venus and Jupiter

The two brightest objects in the night other than the Moon are getting ready to slide past each other in...More »

Stargazing: August 25

Jupiter perches close to the upper left of Venus, the brilliant “evening star,” tonight. They are quite low in the...More »

StarDate Radio: August 24 — Moon and Aldebaran

The Moon slides toward the eye of the bull early tomorrow. In fact, it’ll pass directly in front of the...More »

Stargazing: August 24

The last-quarter Moon slides toward the eye of the bull early tomorrow. Look for bright orange Aldebaran to the lower...More »

StarDate Radio: August 23 — Mars and Antares

Mars passes its legendary “rival” the next few evenings — the star Antares, at the heart of Scorpius, the scorpion....More »

Stargazing: August 23

Mars passes its legendary “rival” the next few evenings — the star Antares, at the heart of Scorpius. The two...More »

Current Magazine

cover of September-October issue

In this issue, get the latest on the search for a large, unseen planet some astronomers think is lurking in the Kuiper Belt, and meet pioneering 19th-century British astronomer Elizabeth Brown, who traveled to Russia to study a solar eclipse.

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