Gemini is known for its brightest stars, Pollux and Castor. They mark the heads of the mythological twins. The stars...More »
▶StarDate Radio: November 11 — Transits
Astronomers use several techniques to discover planets in other star systems. By far the most prolific is the transit method....More »
★Stargazing: November 10
Mercury, the innermost planet, will pass across the face of the Sun today. All or most of the transit will...More »
▶StarDate Radio: November 10 — Morning Treats
The morning sky offers a couple of treats tomorrow. One is a close conjunction between a bright star and a...More »
★Stargazing: November 9
Tomorrow morning’s sky offers a conjunction between Mars and Spica, the brightest star of the constellation Virgo. They will be...More »
▶StarDate Radio: November 9 — Chi Cygni
When a star is in the prime of life, it can shine steadily for billions of years. As it begins...More »
★Stargazing: November 8
Chi Cygni, a star that pulses in and out like a beating heart, aligns near the neck of Cygnus, the...More »
▶StarDate Radio: November 8 — Mercury Transit
A tiny black dot will crawl across the face of the Sun on Monday: the planet Mercury. Its passage will...More »
★Stargazing: November 7
The planet Mercury will crawl across the face of the Sun on Monday. Its passage will be visible across all...More »
▶StarDate Radio: November 7 — Aquarius
The starry pictures that decorate the night sky are like a giant mural — they’re a complex canvas that never...More »
★Stargazing: November 6
Aquarius, one of the constellations of the zodiac, stretches from south to southeast at nightfall, with its brightest stars to...More »
▶StarDate Radio: November 6 — Cometary Water
Water covers more than two-thirds of Earth’s surface. And scientists are still debating where it came from. A study earlier...More »
★Stargazing: November 5
The tiny dipper-shaped Pleiades star cluster climbs into good view on November nights. It is in the east in mid-evening,...More »
Current Magazine
In our November/December issue, we bring you an update on astronomers' hopes to send probes to the Alpha Centauri star system. We'll also fill you in on some telescopes that could be built on the Moon.
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.
