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If you are having trouble viewing this email with images below, click here. |  | |  | | | The harsh environment of space is incredibly taxing on the human body, so NASA has always been interested in exercise science and human physiology. How has NASA's research affected the way athletes train here on Earth? | | | | | If your TV and Internet bills are more out of control than a prime-time drama's plotline, these 10 tips may make them less ridiculous(ly expensive). | | |  | | |  | | | Changing a tire can be tricky if you don't know what you're doing. How knowledgeable are you when it comes to changing a tire? Take this quiz and find out! | | | | | Fiery explosions, boiling lava, hot ash spewing everywhere -- total disaster is probably the first thing that comes to mind when you think "volcano." And, yes, that is certainly a possibility. But do you know what's really going on when a volcano erupts? | | |  | | |  | | | People donate their bodies to science all the time, usually after death. Here, we highlight 10 scientists who experimented on themselves while they were still alive. | | | | |  | | | At Discovery, we value your privacy. If you would like to adjust your email preferences, please click this link to our
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