HST view of Uranus and its moons and rings
Composite image of Supernova 1987A
NICER X-Ray Telescope Attached to International Space Station
Encke's Comet in mid-February
Galaxy map shows

StarDate Radio: February 26 — Annular Eclipse

Skywatchers in parts of South America and Africa are in for a treat today: a solar eclipse. Unfortunately, though, it’s...More »

StarDate Radio: February 25 — Mars and Uranus

The giant planet Uranus hasn’t received a visit from Earth since 1986, when Voyager 2 gave us our only close-up...More »

Stargazing: February 25

The planet Uranus stands quite close to the upper left of Mars tonight, which itself is to the upper left...More »

StarDate Radio: February 24 — Supernova 1987A III

Astronomers have kept a keen eye on Supernova 1987A since it first flashed in the night sky 30 years ago...More »

Stargazing: February 24

The brightest star in the night sky is Sirius, the Dog Star. It is low in the south right now....More »

StarDate Radio: February 23 — Supernova 1987A II

Thirty years ago today, scientists caught the ghosts of an exploding star. The discovery helped confirm how the star died,...More »

Stargazing: February 23

Zeta Puppis, the brightest star of Puppis, the poop deck, is due south about 10 p.m., far to the lower...More »

StarDate Radio: February 22 — Supernova 1987A

Astronomers have been hunting a neutron star for 30 years. They know where it is, and they’re almost certain it’s...More »

Stargazing: February 22

Some of the brightest stars in the night sky form the Winter Circle, a jewel-studded cosmic necklace that fills much...More »

StarDate Radio: February 21 — NICER

It’s been half a century since astronomers discovered the first neutron star. During the intervening decades, they’ve pieced together the...More »

Stargazing: February 21

Taurus, the bull, saunters high across the sky tonight. He is one of the oldest constellations and one of the...More »

StarDate Radio: February 20 — Neutron Stars

Orion, perhaps the most beautiful of all constellations, stands high in the south as night falls. It’s outlined by a...More »

Stargazing: February 20

Orion, perhaps the most beautiful of all constellations, stands high in the south as night falls. It’s outlined by a...More »

Current Magazine

cover of March-April 2017 issue

In our March/April issue, we'll explain how studying sand dunes can teach us about winds and geology on Mars and Titan. We'll also bring you up to date on a new X-ray telescope soon to be launched to the International Space Station. 

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