Tag «carl sagan»

Messages For The Future

Messages For The Future

Hey, Vsauce. Michael here. This is Earth as seen from Saturn. That is us right there. And if you look closely, ok, see this little protuberance? That’s the Moon. This image was taken by the Cassini spacecraft on July 19th, 2013 at 21:27 Coordinated Universal Time. The thing is, NASA gave the public advanced warning …

Why Mars Died, and Earth Lived

The Mars rover, Curiosity, is the latest in a long line of missions to Mars… Landers sent to scoop its soil and study its rocks, orbiters sent to map its valleys and ridges. They are all asking the same question. Did liquid water once flow on this dry and dusty world? Did it support life …