Finding Earth-like planets
Have you ever gazed into the sky and wondered if there were actually other planets like ours in this huge galaxy? It is a fun question to ponder, a mystery beyond our imagination.
Well that mystery might become reality a couple of years from now. NASA's Kepler satellite is out in space right this moment staring down 100,000 stars for the next 3.5 years in search of Earth-like planets.
Kepler will look for tiny changes in a stars brightness when a planet crosses in front of the star. The changes will be measured by scientist to see if the planet is Earth-like.
If everything goes well, scientist expect to find at least 50 Earth-like planets within the search area and the mystery question of whether there are other planets like ours in space may have an answer!
Make sure you read this Sunday's News Illustrated page to learn more about Kepler.
Here is a video about the Kepler mission:
Here is a animation of how it works:
Photos of Kepler can be found at http://www.ballaerospace.com/gallery/kepler/gallery14.htm

















