PBS
100 Years of Relativity + Challenge Winners!
The results are in - on this weeks episode of Spacetime we reveal the answer to our Asteroid Challenge, as well as our T-shirt winners! Check out who saved the world!
TED Talks
Phil Plait: How to defend Earth from asteroids
What's six miles wide and can end civilization in an instant? An asteroid -- and there are lots of them out there. With humor and great visuals, Phil Plait shows us all the ways asteroids can kill us (yipes), and what we must do to avoid...
SciShow
Asteroids to Watch Out For
Hank tells us about NASA's Near-Earth Object Program, which tracks the paths of asteroids and categorizes them according to the likelihood that they will strike the Earth at some point in the future.
AllTime 10s
10 Astronomical Events That Will Happen In Your Lifetime
From comets to the very special birth of a star, get your telescopes and calendars at the ready as AllTime10's brings you 10 Astronomical Events That Will Happen In Your Lifetime!
Next Animation Studio
Large asteroid ‘Apophis’ could hit Earth in 2068
Not all big, Earth-threatening asteroids are spotted before they come uncomfortably close to hitting Earth.
PBS
Pbs: Asteroid
If an asteroid was to hit the earth what would be the effect? The result would be based on its speed, trajectory and most importantly, its size. This site provides a feature that allows you to learn the effects of these variables and...