Two worlds that are a study in contrasts drop down the western sky early this evening — the Moon and...More »
▶StarDate Radio: July 27 — Vanishing Planets
A star in Cygnus, the swan, is entering the final stages of life, so it’s starting to puff up like...More »
★Stargazing: July 27
Stellar time bombs shine in tonight’s sky. Among the brightest are Antares, the heart of Scorpius, which is low in...More »
▶StarDate Radio: July 26 — Black Hole Reality
Black holes are among the most popular objects in the universe. But they’re also among the most misunderstood. Among many...More »
★Stargazing: July 26
A star system in the celestial swan can’t seem to settle down. Every few decades, V404 Cygni flares to thousands...More »
▶StarDate Radio: July 25 — Beryllium
In the movie “Galaxy Quest,” a starship is powered by a sphere of beryllium, one of the lightest chemical elements....More »
★Stargazing: July 25
The tiny arrow known as Sagitta is in the east as night falls and arcs high overhead later on. Under...More »
▶StarDate Radio: July 24 — Oxygen
Oxygen is one of the most important elements on Earth. It makes up about one-fifth of the mass of the...More »
★Stargazing: July 24
Many amateur astronomers turn their telescopes toward the south on summer evenings. The region of the sky around Sagittarius and...More »
▶StarDate Radio: July 23 — Emptiness
It’s lonely out here in the galactic suburbs. The closest neighbors are light-years away — distances that are truly astounding....More »
★Stargazing: July 23
The star cluster Messier 11 is more than 6,000 light-years away, in the constellation Scutum, the shield. The cluster’s brightest...More »
▶StarDate Radio: July 22 — Far, Far Away
It’s a long way from Earth to the center of the galaxy. But the exact distance is uncertain — measurements...More »
Current Magazine
Our July/August issue of StarDate magazine will focus on the Great American Eclipse. On August 21, a total solar eclipse will be visible across a wide swath of the United States, with a partial eclipse in store for the rest of country. We'll tell you how to make the most of it.
2017 Sky Almanac
The year may be more than half over, but plenty of stargazing adventures are still ahead. Find out about all of them in our 2017 Sky Almanac issue, which offers skywatching tips, charts, Moon phases, and much more. And we've reduced the price to $4, which is almost half off the cover price. Order online or call 1-800-STARDATE during regular business hours.
