Fascinating faculae provide a way for anyone with a small telescope to track the ups and downs of the solar cycle — even when there are no sunspots. Sunspots get all the press. Last week the Web hummed with articles about a spotless Sun, the first time since August 2011 our star wore a...
Channel your inner superpower by looking up at the night sky precisely when a dazzling blaze of light is beamed to Earth from outer space.
Not every set of closely paired stars requires binoculars or a telescope to "split". Here's a guide to summertime doubles you can tackle with your eyes alone.
Two bright asteroids now appear extremely close to one another in the evening sky. Here's how to spot them in binoculars or a small telescope.
Take part in this year's Great World Wide Star Count, and you'll be joining thousands of other "citizen scientists" in raising dark-sky awareness around the globe.
If you're an amateur observer with decent equipment and an itch to do some serious observing, a team from the OSIRIS-REx mission wants to hear from you!
Here's all you need to know to help us measure the size of Earth's shadow on Dec. 10, 2011.
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.
A quick download, some scissors, and a paper fastener are all it takes to use the stars to tell time.
Sundials are amazingly simple yet effective devices. They range from sticks planted in the ground to precision-machined marvels costing thousands of dollars. The design shown here can be constructed in minutes from materials lying around your house, but it's surprisingly accurate.
These communications satellites can briefly outshine Venus as they spray the ground with reflected sunlight.
Bright skies aren't empty skies. See for yourself how many treasures lie hidden in the glow of a city sky.
Trained eyes and clear, dark skies can open up a new dimension in deep-sky observing.
Few observers have spotted an ever-elusive "new" star. Fewer still have done it twice. Observing styles and techniques are as varied as the searchers themselves.
Here are some tips for hunting one of nature's most captivating sights.