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
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
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.
