Apr 262013
What If The Sun Disappeared?
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Apr 042013
Everyone is curious about what would happen to Earth if the sun disappeared. In short: We’d be hosed.
Popular science educator Michael from Vsauce returns to the web to discuss gravity and the Sun. As a thought experiment, he asks the interesting hypothetical, “What if the sun disappeared?“
It’s not going to happen, but interestingly enough, if it did, we wouldn’t be aware that anything was wrong for a good eight minutes, as it takes that long for light to travel the millions of miles from the Sun to the Earth.
Life By The Numbers
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Mar 232013
Have you ever wondered how successful humans are when compared to other species?
There are now more than 7 billion human beings on Earth, and that got me wondering: How successful are we compared to other species? I take a look at out how our numbers stack up to some other domains of life. It turns out that biomass, or what things weigh, can be more important than how many of something there are. Find out how our numbers stack up against everything from bugs to bacteria, and get ready for some mind-blowing numbers!
Earthereal: International Space Station
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Mar 082013
NASA’S Plan For Big Asteroids
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Mar 022013
Thanks to Obama, today, if we want to send an astronaut to the space station, we have to pay the Russians to take him there. Will we have to depend on the Russians to protect us from a civilization ending asteroid?
Astrophysicist Neil Degrasse Tyson explains what can be done to protect Earth from an impact with a giant asteroid.