You may have noticed that physicists are very, very excited this week. In fact everyone involved in science on any level seems to have a party hat on. However, if you are not a physicist or don't know much about science, you may be a little hazy on why everyone is so excited and just why gravitational waves are so important.
So long as you have a rudimentary understanding of the nature of the universe and the big bang theory, the video below from Nature should help clear things up a bit.
After that, if you're still interested, you might want to read this interview with John Kovac (who is probably in line for a Nobel Prize for his work on this).
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