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Highlights

A Closer Look at Mars Find out what we know about Mars in this online tour of Earth's closest neighbor.

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more Astronomy stuff

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.
The Journey Begins
Almost all of the atoms that make up your body were once inside stars that exploded billions of years ago. Learn more mind-boggling facts from an astronomer.
A Closer Look at Mars
Find out what we know about Mars in this online tour of Earth's closest neighbor.
An Interview with Mars
Help reporter Stella Stardust interview the planet Mars
Astro Poll
Make your opinion count!
Astronomy Books
Eleven great ways to learn about everything under the Sun ... moon, and stars
Cosmic Connections
Match these awesome images from the Hubble Space Telescope with their descriptions.
Build the Big Dipper
To see what the Big Dipper would look like from outer space, build a mobile!
Cosmic Cookies
Make miniature planets that look just like the real thing? and them eat 'em!
Don't Be Lost in Space
Your address in space is a whole lot longer than your mailing address here on Earth.
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.
Make Your Own Astronomy Stationery
Send a note to a friend with these astronomical letterheads.
Moon Flip Book
See the moon in action! And discover why our view of it changes nightly.
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.
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!
Planetary Mysteries
Take a virtual tour of our solar system to explore its many mysteries.
Meet the OLogist: Neil de Grasse Tyson
Discover where starry-eyed Neil has followed his curiosity.
Light the Way
Take a quick look at the fastest thing in the Universe.
Space Travel Guide
Let your imagination run wild, and write an inspiring work of science fiction.
Everyday Einstein: Black Holes
A quick explanation of the bottomless dimples in space we call black holes.
Space and Time
How do you describe your place in the 4th dimension?
astronomy credits

MEMBER HOMEPAGE

Cosmic Collisions Space Show

Take a thrilling trip through space and time! Discover the daily explosions that occur within our Sun, and watch a future collision of the Milky Way Galaxy with our closest neighbor. Go!

Cullman Hall of Universe

How did our universe evolve into galaxies, stars, and planets? Come find out as you play with hands-on interactives, watch giant videos, and more. Go!