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Vintage Space
Sojourner, the Little Rover that Could
Sojourner wasn't advanced like Curiosity, but this little roving microwave paved the way for all modern rovers. As part of its 1997 Pathfinder mission, a low-cost Discovery class mission to land on Mars, NASA landed the Sojourner rover...
California Academy of Science
What is the Environmental Impact of Feeding the World?
One in every seven people suffer from a lack of basic food. Our Hungry Planet introduces this complex issue in the second lesson of an interesting 13-part unit. It discusses the space needed to grow and raise food, the transportation of...