Galaxy Centaurus A
Radio observatory on the Moon
Hubble Space Telescope after its final servicing mission
Solar storm, May 2019
An asteroid slams into Greenland

StarDate Radio: May 24 — Omega Centauri

Omega Centauri is an intimate place for stars. The cluster contains millions of stars packed into a ball a...More »

StarDate Radio: May 23 — Centaurus A

Centaurus A is the fifth-brightest galaxy in the night sky, so it’s an easy target for telescopes and binoculars....More »

Stargazing: May 23

Some of the brightest stars of winter are dropping from the evening sky. Low in the west at nightfall, look...More »

Stargazing: May 22

Ophiuchus, the serpent bearer, wheels high across the south tonight. It’s not that much to look at — only a...More »

StarDate Radio: May 22 — Alpha Centauri

Like a bear that spends part of its time in hibernation, the Sun goes through cycles of more and...More »

Stargazing: May 21

Look for the Moon and a bright companion the next couple of mornings. The planet Saturn will be close to...More »

StarDate Radio: May 21 — Moon and Saturn

When Apollo astronauts orbited the Moon, they had some quiet time. When they passed behind the Moon, the Moon’s...More »

StarDate Radio: May 20 — Moon and Planets

The giants of the solar system flank the Moon tonight. Jupiter, the largest planet, rises to the upper right...More »

Stargazing: May 20

Jupiter, the solar system’s largest planet, rises to the upper right of the Moon late this evening. It looks like...More »

Stargazing: May 19

Jupiter is easy to find now because it is quite near the Moon. The planet looks like a brilliant star,...More »

StarDate Radio: May 19 — Moon and Jupiter

Jupiter is named for the king of the gods of ancient Rome. The planet earned the name because it’s...More »

StarDate Radio: May 18 — Last Look

We got our final look at Hubble Space Telescope 10 years ago this weekend. Astronaut Megan McArthur released it...More »

Stargazing: May 18

The Moon is full today. It reaches “full” when it lines up opposite the Sun, so sunlight fully illuminates the...More »

Current Magazine

cover of May-June 2019 issue

Our May/June issue brings you excerpts from new books in astronomy and space science to spice up your summer reading. We'll also bring you summer skywatching notes and charts, Merlin's answers, and more.

2019 Sky Almanac

Sky Almanac cover

Plan for this year's stargazing adventures with our 2019 Sky Almanac, which offers skywatching tips, charts, Moon phases, and much more. And for the rest of the year, we've reduced the price! Order online or call 1-800-STARDATE during regular business hours.

Order online

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