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Chris Hadfield: Before we colonize Mars, we should settle the moon
NASA and private entrepreneurs with deep pockets like Elon Musk have spent billions of dollars exploring Mars, with the goal to eventually colonize the planet. But what if it’s not the only site to explore? Retired astronaut and author of “An Astronaut’s Guide to Life on Earth” weighs in.
Now that Trump's military parade is canceled, here's everything else he could do with $92 million02:25
Elite private schools have divided our education system. But can we get rid of them?03:20
Dascha Polanco talks OITNB, being Latino in Hollywood and posing naked03:57
‘RuPaul’s Drag Race’ runner-up Peppermint on exclusion in the drag world03:26
Are we at war with Russia? Because Russia is certainly at war with us03:04
3D-printed guns are a reality – and they're going to change the gun control debate forever05:13