M97, the Owl Nebula, in Ursa Major
This diagram depicts the 13.8-billion-year history of the universe
Sirius, Mirzam, and M41 in Canis Major, the big dog
Composite view of the Orion Nebula
Deimos and Saturn from Mars Express

StarDate Radio: March 17 — Owl Nebula

An owl stares at us from the Big Dipper — the death mask of a star. It consists of several...More »

Stargazing: March 16

The Moon will be “new” early tomorrow as it crosses the line between Earth and the Sun. It is lost...More »

StarDate Radio: March 16 — The Future

The future of the universe looks dark. The stars will fade away, matter may disintegrate, and even black holes may...More »

Stargazing: March 15

One of spring’s most prominent stars is Arcturus, in the constellation Bootes, the herdsman. This yellow-orange star rises in the...More »

StarDate Radio: March 15 — Before the Big Bang

Scientists pretty much agree that our universe — everything that we can see and touch — evolved from a single...More »

Stargazing: March 14

Cancer, the crab, is well up in the east at nightfall. Although it is part of the zodiac, its stars...More »

StarDate Radio: March 14 — The Big Bang

The universe contains hundreds of billions of galaxies. All but a few of them are moving away from us, with...More »

Stargazing: March 13

As Earth turns, most stars rise in the east and set in the west. But a few remain visible all...More »

StarDate Radio: March 13 — Counting Galaxies

Leo, the lion, springs across the sky on March nights. He’s in the east at nightfall, marked by his prominent...More »

StarDate Radio: March 12 — Zosma

The proper names of the three brightest stars of Leo, the lion, all sound like destinations from a spy thriller:...More »

Stargazing: March 12


The constellation Leo is in the east as night falls, with Regulus, its leading light, about a third of the...More »

StarDate Radio: March 11 — Milky Way Clusters

If you have access to a dark skywatching site, far from the glow of city lights, this is a great...More »

Stargazing: March 11

If you have access to a dark skywatching site, this is a great evening to look at the Milky Way....More »

Current Magazine

cover of March-April 2018 issue

In our March/April issue, we'll introduce you to several groups of researchers preparing for future trips to Mars in simulated Mars environments on Earth. And we'll tell you about the life of Benjamin Banneker, a pioneering African-American astronomer of the Revolutionary era. 

2018 Sky Almanac

Sky Almanac cover

Plan all of your stargazing adventures with our 2018 Sky Almanac, which offers skywatching tips, charts, Moon phases, and much more. Order online or call 1-800-STARDATE during regular business hours.

Order online

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