You've probably learned about eclipses, meteors, and comets in school already.
Meteorite impact in Russia:
Watch a total eclipse of the sun:
(Dave Kodama's video of a total solar eclipse:
Inset view shows the sun being eclipsed and the main view shows what the people are experiencing during daytime hours.)
*The continental United States will be able to watch a TOTAL solar eclipse on August 21, 2017!!
Check it out: