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Stargazing How many constellations and planets can you find among the thousands of stars in the night sky? Record your sightings in a stellar sky journal.

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What's the Big Idea About Astronomy?
Astronomy is a BIG subject. We've brought learning about it down to size with this look at the big ideas you need to know.
In Pictures: Journey to the Stars
In the Milky Way Galaxy alone, there are hundreds of billions of stars. But that hasn't always been the case...
Are YOU cut out for Mars?
Do you have what it takes to go on a space mission to Mars?
The Journey Begins
Almost all of the atoms in your body were once inside stars that exploded billions of years ago. Learn more mind-boggling facts from an astronomer.
In Pictures: Beyond Earth
Astronomy Books
Eleven great ways to learn about everything under the Sun ... moon, and stars
What do you know about Stars?
Test your starry knowledge in this stellar quiz!
A Closer Look at Mars
Find out what we know about Mars in this online tour of Earth's closest neighbor.
Cosmic Wallpapers
Decorate your desktop with these starry images!
Light the Way
Take a quick look at the fastest thing in the Universe.
Cosmic Cookies
Make miniature planets that look just like the real thing… and them eat 'em!
Cosmic Connections
Match these awesome images from the Hubble Space Telescope with their descriptions.
Don't Be Lost in Space
Your address in space is a whole lot longer than your mailing address here on Earth.
Build the Big Dipper
To see what the Big Dipper would look like from outer space, build a mobile!
Meet the Universe's Main Attraction... Gravity
Read all about how the pulling power of gravity affects everything in the universe—stars, planets, moons, and even you.
One-on-One with the Sun
Find out what makes the Sun glow, and other amazing facts, in an up-close and personal interview with the Sun.
Solar System Scavenger Hunt
Size up the planets with a model scavenger hunt.
How Did the Universe Begin?
Learn how a man named Hubble made two amazing discoveries—and paved the way for a breakthrough idea.
Space and Time
How do you describe your place in the 4th dimension?
Astro Poll
Make your opinion count!
Make Your Own Astronomy Stationery
Send a note to a friend with these astronomical letterheads.
An Interview with Mars
Help reporter Stella Stardust interview the planet Mars
Stargazing
How many constellations and planets can you find among the thousands of stars in the night sky? Record your sightings in a stellar sky journal.
The Milky Way Galaxy
Tour this spinning pinwheel in space that we call home.
What Do You Know about Astronomy?
How much do you really know about our place in space? Take this quiz to find out!
Moon Flip Book
See the moon in action! And discover why our view of it changes nightly.
Meet the OLogist: Neil de Grasse Tyson
Discover where starry-eyed Neil has followed his curiosity.
Everyday Einstein: Black Holes
A quick explanation of the bottomless dimples in space we call black holes.
Planetary Mysteries
Take a virtual tour of our solar system to explore its many mysteries.
Space Travel Guide
Let your imagination run wild, and write an inspiring work of science fiction.
Space Jell-O
Thanks to Einstein, we know that space bends around anything that has mass. Mix up some Jell-O, and bend your mind around this concept.
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