Coronal mass ejection from the Sun
A comparison of the Vega system and our solar system
Moon and Spica, evening of June 12, 2019
View of Jupiter's southern hemisphere from June, February 2019
D-Day invasion, influenced by the phase of the Moon

StarDate Radio: June 17 — Big Storm

The Sun can turn nasty. But we don’t know just how nasty it can get. Astronomers have been keeping a...More »

StarDate Radio: June 16 — Beautiful Pairings

The solar system serves up a couple of beautiful pairings just after sunset this evening. One of them disappears with...More »

Stargazing: June 16

The full Moon and the planet Jupiter keep company tonight. Jupiter looks like a brilliant star to the upper right...More »

Stargazing: June 15

The Moon has two bright companions tonight. The star Antares stands to the lower right of the Moon as night...More »

StarDate Radio: June 15 — Moon and Antares

A flickering stellar giant stands to the lower right of the Moon this evening. Bright orange Antares is one of...More »

Stargazing: June 14

Vega, the second-brightest star in the northern half of the sky, is in great view as we head toward summer....More »

StarDate Radio: June 14 — Vega

The second-brightest star in the northern half of the sky is in great view as we head toward summer. Vega...More »

Stargazing: June 13

The Summer Triangle is climbing into view in the eastern evening sky. Its highest and brightest point is the star...More »

StarDate Radio: June 13 — Hubble Constant

The universe has been expanding since the Big Bang. Knowing how fast it’s expanding can tell us the universe’s age,...More »

StarDate Radio: June 12 — Moon and Spica

We tend to think of stars as nice round balls. In fact, though, few stars are perfectly round. Most...More »

Stargazing: June 12

Spica, the leading light of the constellation Virgo, is to the lower right of the Moon as night falls. Spica...More »

Stargazing: June 11

Jupiter, the largest planet in the solar system, is low in the southeast at nightfall. It looks like a brilliant...More »

StarDate Radio: June 11 — Jupiter at Opposition III

Jupiter travels with a big entourage, including almost 80 known moons, several dark rings, and two clumps of asteroids.

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.

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