Betelgeuse, the brilliant red star at the right shoulder of Orion, is a supergiant whose girth extends out to the orbit of Jupiter.
Time travel is one of the best things about astronomy. Check out two websites that give skywatchers a more visceral sense of stellar distances and how constellations change shape across the sweep of time.
Meet the brightest stars near Earth. Next up: Polaris, the North Star, the star within a degree of the north celestial pole.
Meet the stars near Earth, starting with the brightest: Sirius, the "Dog Star."
Wondering what to read next? Looking for a gift for the amateur astronomer in your life? Check out these new astronomy books!
Native American tribes each had their own full Moon names — we introduce the most commonly used ones and the traditions behind them.
Learn some of the classic stargazing sights that can be best viewed through a smaller telescope.
How do you find out what stars are visible tonight? With a planisphere or "star wheel." It's easy!
Here's what you need to know to navigate the heavens with a telescope and star atlas.
Our Constellation Basics webinar provides background information about the major winter constellations. Here are some accompanying online resources.
Asterisms appeal to our playful side but also serve as key waypoints in the sky for identifying fainter stars and constellations.
Most of us are familiar with the Seven Sisters, but have you met their brothers? Learn how to find more Pleiades than first meet the eye.
October's a perfect time to see the zodiacal light, a tapering tower of comet dust standing high in the eastern sky before dawn. Here's how to find it.
Ten thousand stars bedazzle the eye on a dark night. Wait, how many?
With a subtle beauty all its own, the earthshine we see glowing in the lunar night invites us to consider Earth's many connections to the Moon.
Watch S&T senior editor Alan MacRobert show and explain how to use star charts and planispheres (star wheels).
Would you like to be able to navigate your way around the night sky with confidence? Using this simple, easy-to-make Star Wheel, you can "dial the sky" for any time or date.
An easy guide to exploring the universe is just a quick download away. This PDF document contains valuable tips for beginner stargazers, a detailed Moon map, and six bimonthly star charts for either the Northern or Southern Hemisphere.
Astronomy doesn't deserve its reputation as a tough, expensive hobby. You just need to begin with the right advice.
Ready to voyage beyond the Solar System? Here's what you can see.
Confused by the bizarre names that astronomers have given the stars? Here's where they come from and what they mean.