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On April 22, 1970, the world marked the first Earth Day. To celebrate, we’re sharing amazing images of Earth from space! Solve Space by unscrambling this view of the aurora australis (southern lights) four days after a record-setting solar flare sent plasma—an ionized gas of protons and electrons—flying towards the Earth. Then learn all about how you can celebrate Earth Day at Space Center Houston!

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Join us at our Planet Earth Celebration April 22-25, where you can: 

Get your tickets now!