Here's all you need to know to help us measure the size of Earth's shadow on Jan. 31, 2018.
With Venus approaching inferior conjunction, don't miss the chance to see one of the thinnest Venus crescents of your life.
From humble beginnings in 2008, a simple idea — equipping libraries with loaner telescopes — has caught on across the United States.
Take a trip down the rabbit hole to the weird and weighty world of planet-sized white dwarf stars.
Mind your elders the next clear night and pay a visit to some of Spring's biggest and most ancient planetary nebulae.
Join the world’s largest celebration of astronomy — in person or via online webcasts of events — throughout April.
It's high time that we amateur astronomers got serious about protecting the night sky from light pollution.
Amateur astronomer Phillip Kane gives some advice on organizing "your" observing experts to assist you at the eyepiece.
Participate in a world-wide campaign to observe and photograph Comet 67P/C-G as it approaches and recedes from the Sun with Rosetta in tow. Your observations matter.
Amateur astronomer Mark McCarthy shares his observing report for his own "Night of Discovery," when he recreated Herschel's legendary "sprint" of April 11, 1785.
Keeping a record of what you see in the telescope is not only fun but helps grow your observing skills. Learn how to start a journal and see how other amateurs keep theirs. Do you write down what you saw after a session at the telescope? I've been doing it since I was a kid. I…
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.
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!
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.