Technology
How to Talk to Aliens

Are we alone in the universe? Even if we could contact aliens, what would we say? How would we say it? And, most importantly, should we even be trying to make contact at all? This episode takes me on a journey to compose and send my own personal message into outer space. Available with YouTube ...

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Penelope Boston: Life on Mars? Let's look in the caves

http://www.ted.com So the Mars Rovers didn't scoop up any alien lifeforms. Scientist Penelope Boston thinks there's a good chance -- a 25 to 50 percent chance, in fact -- that life might exist on Mars, deep inside the planet's caves. She details how we should look and why. source

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This Week in Space: Evidence of alien stars in Milky Way

National Geographic's astronomy columnist Andrew Fazekas discuss one of the most detailed maps of the Milky Way to date. Subscribe to CTV News to watch more videos: https://www.youtube.com/ctvnews Connect with CTV News: For the latest news visit: http://www.ctvnews.ca/ For a full video ...

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