Sunrise on Mars, February 16, 2018
Hubble Space Telescope view of NGC 3344
messier 48
Lupus 3 star forming region
Great Comet of 1843

StarDate Radio: February 19 — Doomed Moons

Some moons lead dangerous lives. Two moons of the planet Uranus, for example, are likely to be destroyed in...More »

StarDate Radio: February 18 — Columba

Here’s a phrase that you probably haven’t heard before: solar antapex. It’s the location in the sky that’s opposite...More »

Stargazing: February 18

Columba, the dove, scoots low across the south tonight, to the lower right of Sirius, the brightest star in the...More »

StarDate Radio: February 17 — Mercury in Conjunction

The smallest of the solar system’s major planets is hiding in the Sun’s glare right now. That’s because Mercury...More »

Stargazing: February 17

Mercury, the smallest of the solar system’s major planets, is hiding in the Sun’s glare. It lines up behind the...More »

Stargazing: February 16

Beta Pictoris, a star in the constellation Pictor, is visible low in the south from the far-southern United States. The...More »

StarDate Radio: February 16 — Flying Across Titan

Most of the spacecraft that have touched down on other worlds have been either stationary landers or wheeled rovers....More »

Stargazing: February 15

The Moon is new today as it crosses the imaginary line between Earth and Sun. It is immersed in the...More »

StarDate Radio: February 15 — Chelyabinsk

Our planet Earth is like a target in a shooting gallery. It could be hit by a big space...More »

StarDate Radio: February 14 — Solar Eclipse

Those hoping for a big encore after last year’s total solar eclipse will have to wait a while. The Sun...More »

Stargazing: February 14

A partial solar eclipse will take place tomorrow, but it won’t be visible from the United States. The eclipse will...More »

Stargazing: February 13

Every night as darkness falls, lonely Polaris, the pole star, pops into view in the north. Unlike the other stars,...More »

StarDate Radio: February 13 — On the Move

Our home galaxy, the Milky Way, is on the move. It’s being pulled by the gravity of other galaxies, which...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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