Artist's concept of TESS in front of a star with several transiting planets
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

StarDate Radio: March 22 — Moon and Aldebaran

Most of the stars appear as no more than pinpoints of light through even the biggest telescopes. They’re too...More »

StarDate Radio: March 21 — PicSat

A French satellite that’s small enough to hold in your hand is looking for a big planet to make a...More »

Stargazing: March 21

The constellation Coma Berenices, which represents the hair of a legendary queen, is well up in the east by mid-evening....More »

StarDate Radio: March 20 — Planet Hunter

The next planet hunter is getting ready for launch. It’ll sweep the skies within a few hundred light-years of Earth....More »

Stargazing: March 20

Spring arrives in the northern hemisphere today, but the most prominent stars of winter remain in good view. They form...More »

StarDate Radio: March 19 — Vernal Equinox

The Sun will cross a special point in the sky tomorrow. The crossing marks the beginning of spring in the...More »

Stargazing: March 19

The Sun will cross the celestial equator tomorrow. The crossing marks the vernal equinox, which is the beginning of spring...More »

Stargazing: March 18

The vanishingly thin crescent Moon has a couple of companions after sunset this evening, the planets Venus and Mercury. Venus...More »

StarDate Radio: March 18 — Moon and Companions

The vanishingly thin crescent Moon has a couple of companions after sunset this evening — the planets Venus and...More »

Stargazing: March 17

The Owl Nebula stares out from the Big Dipper. It is a set of concentric bubbles of gas blown into...More »

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 »

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 16

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