Have you ever wondered what makes the cosmic fireworks called meteor showers? Meteor showers are just the debris of a passing comet or sometimes the debris from a fragmented asteroid.

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Galileo drew the stars using four different sizes to distinguish their different brightnesses, and he published his findings in 1610. Today, spacecraft and orbiting telescopes join ground-based observers to learn more about our galaxy.

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Look up this month and see hundreds of thousands of ancient stars, all held together by gravity. It's the Hercules Globular Cluster - M-13!

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The brightest object around gets our attention this month as we take in the sun. Visit with solar observers past and present.

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Take a tour of the Whirlpool galaxy, with views from early astronomers and NASA space telescopes.

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Saturn takes center stage this month. Learn how the ringed world has been observed through history.

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What's Up for February? Take a step back in time and see how astronomers like Galileo studied the moon.

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What's Up for January? Earth's sister planet, Venus! It's the first celestial object featured during the 2009 International Year of Astronomy.

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December will be a fantastic time to see the solar system from your own back yard.

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Spooky sights fill the night sky on Halloween and celestial treats will surprise you all month long.

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Step away from the city lights and gaze up at our Milky Way galaxy. You may even see one of the galaxy's spiral arms with your own eyes!

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Jupiter reigns the night sky this month. Find out where to look and what you'll see through a telescope.

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Summer is here so it's the perfect season to talk about the sun.

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Get ready to gaze at galaxies through your telescope. Then compare your views to those taken in infrared by the Spitzer Space Telescope.

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Take a peek at a dying star, plus great views of Saturn and Mars.

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Don't miss this month's lunar eclipse on Feb. 20. A few days later, Saturn moves to center stage.

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There's more the to the stars than meets the eye. Find out where to look for stars that have planets orbiting them.

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Mars, Mars and more Mars. This month offers great views of the red planet, with or without a telescope.

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This month you'll have great views of a red planet and a red star. Plus, find out when the Mars rovers are facing Earth.

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Views of Saturn's weird moon Iapetus in the night sky may spook the faint hearted but a glimpse of Mars on Halloween will be a treat.

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It's the 30th anniversary of the Voyager mission and you can see all four planets that Voyager studied in the night sky this month.

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The Perseid meteor shower will dazzle in the early morning hours of Aug. 13. Plus, a popular planet shows up in the night sky.

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Take a guided tour of the moon and discover some cool lunar sites visible without a telescope.

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Jupiter and Venus put on a spectacular show this month. Our two-minute night sky video guide tells you where to look.

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Lots of planets are visible in the night sky this month. Plus, an asteroid makes a guest appearance. Our two-minute video guide will tell you where to look to see these great views.

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Take a 2-minute guided tour on where to look in the night sky for this month's stunning views. No telescopes required.

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