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There is a point when you have enough of what you need, says author, speaker, and social innovator Vicki Robin.
What qualities bring success? Miki and Radha Agrawal share the story of how one decision changed their lives.
If the problem were Trump it wouldn't be happening in other places around the world, says political scientist Ian Bremmer.
Michael Shermer responds to the discussion over his article, "Will Science Ever Solve the Mysteries of Consciousness, Free Will and God?"
Trash on earth is pretty bad. But space trash is at a whole other level.
When you have the opportunity to take gravity away from the human body, the results are pretty fasninating.
Don't let others define your own path through life, says comedian and raconteur Nick Offerman.
The retired astronaut Chris Hadfield explains the challenges and joys of being a photographer in space.
What role does beauty play in evolution? How does Darwin's idea of natural selection apply to how we choose mates? Richard O. Prum, professor of Ornithology at Yale University, explains.
Slowing workforce growth can affect American GDP growth unless we focus on skills training and immigration reform, says Robert Steven Kaplan, the President and CEO of the Federal Reserve Bank of Dallas.
What are the different types of rocket engines and will there be a rocket engine coming in the future that uses very little energy? NASA's Michelle Thaller explains.
Why do we continue to stay in Iraq and Afghanistan? Because of two big reasons.
Why virtue signaling does nothing.
How does money stay valuable? It just keeps growing. But is that healthy?
Physicist Michio Kaku discusses the main difficulties humans face in colonizing Mars and how to overcome them.
Sloths are unfairly ridiculed and underappreciated animals, says zoologist and filmmaker Lucy Cooke.
We are making a mistake if we use the lessons from European history to try to understand China, says David Kang, professor of international relations at USC.
NASA's Michelle Thaller shares her prediction of what it will take to get people to Mars, including what role Elon Musk will play in that effort.
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Want to be a great scientist? Think like a child.