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Recent analyses of Martian soil have found significant amounts of water.
Could Mars have been a better starting point for the origins of life on Earth?
Planetary scientists and future explorers are trying to learn about our neighboring planet without ever leaving Earth.
Microbes may once have thrived in a freshwater lake on Mars, according to clues in an ancient rock.
What's it like to live -- and cook -- on Mars? To find out, researchers are simulating Mars missions in Russia and on the slopes of a Hawaiian volcano.
Ira Flatow and guests share science funnies and discover an element of humor (pu...
Researchers have tickled gorillas, bonobos, chimps and humans in an effort to un...
Do 'science' and 'comedy' go together?
Can hearty laughter have some of the same physiological effects as exercise?
Smile, smile, smile. Happiness may be catching.
Author Scott Weems lets us in on the jokes and uncovers the science of humor.