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It’s been a little over 50 years since the space age began, and the most important thing we’ve discovered is the Earth.
The 23 Moons and Planets With Water in Our Solar System
The Search for Intelligent Life Is About to Get a Lot More Interesting - The New York Times
Exploring space and finding our own Pale Blue Dot
European Space Agency
Milky Way
Exploring space and finding our own Pale Blue Dot, Environment
Pale Blue Dot: An Alien View Of Earth : NPR
Exploring space and finding our own Pale Blue Dot
Carl Sagan: Cosmos, Pale Blue Dot & famous quotes
Earth-like planets may be an inevitability
The 23 Moons and Planets With Water in Our Solar System
Milky Way