We’re still a human race infected by tribalism – I mean we really are – and infused with incredible religious differences and confrontations that have plagued us ever since any of us began recording history, I guess, and continue to plague us. I’m deeply concerned about . . . about how those elements of human history still expressed in national sovereignties and . . . and religious wars, and religious confrontations, and as we see it expressed today in this Islamic jihad with the west . . . how those were gonna turn out. I mean if we’re not careful, all of the predictions of Nostradamus are gonna become real. We’re gonna blow this planet apart at some point if we don’t get past that. And that’s a difficult thing to get past. I mean we are born of tribes. We’re still connected to them. We still believe we’re different because we look different than one another. And we let our religious beliefs get in the way of our common sense sometimes in the way we deal with one another. We don’t talk to one another. We confront one another across the planet. We don’t . . . we don’t . . . We’re not as tolerant of our difference as we should be. We’re not as understanding of our different cultures as we should be. It’s a planet rich in differences that should enrich us all instead of divides us. And that would be okay except that more and more countries are now beginning to possess the capabilities of really disrupting our progress on earth, and disrupting the advance of knowledge in human kind. And that’s gotta trouble ya.

Recorded on: 9/11/07

We can't seem to shake our tribal loyalties.

How to make a black hole

Here's the science of black holes, from supermassive monsters to ones the size of ping-pong balls.

  • There's more than one way to make a black hole, says NASA's Michelle Thaller. They're not always formed from dead stars. For example, there are teeny tiny black holes all around us, the result of high-energy cosmic rays slamming into our atmosphere with enough force to cram matter together so densely that no light can escape.
  • CERN is trying to create artificial black holes right now, but don't worry, it's not dangerous. Scientists there are attempting to smash two particles together with such intensity that it creates a black hole that would live for just a millionth of a second.
  • Thaller uses a brilliant analogy involving a rubber sheet, a marble, and an elephant to explain why different black holes have varying densities. Watch and learn!
  • Bonus fact: If the Earth became a black hole, it would be crushed to the size of a ping-pong ball.

Russian reporters discover 101 'tortured' whales jammed in offshore pens

Protected animals are feared to be headed for the black market.

Politics & Current Affairs
  • Russian news network discovers 101 black-market whales.
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In a breakthrough for nuclear fusion research, scientists at China's Experimental Advanced Superconducting Tokamak (EAST) reactor have produced temperatures necessary for nuclear fusion on Earth.

Credit: EAST Team
Surprising Science
  • The EAST reactor was able to heat hydrogen to temperatures exceeding 100 million degrees Celsius.
  • Nuclear fusion could someday provide the planet with a virtually limitless supply of clean energy.
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