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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.
Let’s be honest: President Trump’s executive order solves almost nothing02:40
How e-cigarettes like the Juul are co-opting the language of wellness03:05
'I refuse to apologize': '13 Reasons Why' defends the show's suicide controversy04:30
How willful ignorance is changing U.S. politics02:36
Can mass shootings really catch on like a disease?03:36
Where do conservative women fit into the #MeToo movement?03:31