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Overgrazing by deer is changing the face of U.S. forests
Deer's natural predators, wolves, have been exterminated. Today, overgrazing by deer in hugely multiplied numbers is affecting forests.
March 18, 2014
Video: Bill Nye tells how the Science Guy came to be
Bill Nye uses the unlikely pairing of Steve Martin and Carl Sagan as role models to become "the Science Guy."
March 14, 2014
Do microbes spoil food to avoid sharing?
Don't enjoy your fruit with a coating of slime and fur? Fine then, that just leaves more for the microbes.
March 13, 2014
Cosmos is coming Sunday night
If you watch this three-minute long trailer for the new Cosmos without wanting to tune in to the whole series ... you are made of sterner stuff than me.
March 8, 2014
The chain fountain video is amazing
It's looks like a magic trick, but it's really a problem in the physics of everyday things.
March 6, 2014
Another asteroid flies through Earth-moon system on Thursday
For the second time in two days, an asteroid is sweeping safely through the Earth-moon system. How to watch online.
March 6, 2014
Where in the U.S. you’re most likely to be struck by lightning
One moment you're strolling across the golf course. The next moment your body is wracked with the searing pain of 50,000 degrees Fahrenheit.
March 6, 2014
Lightning, seen from space
NASA routinely studies lightning space to aid in weather forecasting. A new instrument is being planning for a 2016 launch.
March 6, 2014
Watch online as asteroid sweeps within moon’s distance today
Watch online as asteroid 2014 DX110 sweep closer than the moon on Wednesday, March 5.
March 5, 2014
Rising seas threaten world cultural sites, says study
Statue of Liberty, Independence Hall, Tower of London and Sydney Opera House are among sites that could be lost to rising seas if current global warming trend continues.
March 5, 2014
