Explore Worlds
Find Life
Defend Earth
Intro Astronomy 2017. Class 1: Tour of the Solar System
Take a tour of the Solar System in class 1 of Dr. Bruce Betts' online Introductory Planetary Science and Astronomy course at California State University Dominguez Hills.
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Accelerate progress in our three core enterprises — Explore Worlds, Find Life, and Defend Earth. You can support the entire fund, or designate a core enterprise of your choice.
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Know the cosmos and our place within it.
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Empowering the world's citizens to advance space science and exploration.