Garik Israelian is a spectroscopist, studying the spectrum emitted by a star to figure out what it's made of and how it might behave. It's a rare and accessible look at this discipline, which may be coming close to finding a planet friendly to life
The Rock Elm meteorite
Sometime around 465 to 475 million years ago, a meteorite streaked across the sky, plowing through the shallow ocean and slamming into the earth at a speed of close to 70,000 miles per hour. It came to rest in what is now east-central Pierce County in western Wisconsin.
Kepler telescope begins its search for other earth-like planets that could possibly hold life.
Rocky planets, possibly with conditions suitable for life, may be more common than previously thought in our galaxy, a study has found.
Discusses the traits of living things...
You will notice difference in how many traits there are in living things. We learned "5" in class. That doesn't mean it is the perfect answer to a tough question. The reason there are differences is that you might be able to include some of the characteristics together. For example: We have "reproduce" as a trait. This site has "reproduce" and "displays heredity" as two separate traits. We are grouping heredity as part of reproduction.
planets life extraterrestrial
Our land may be green and pleasant but a Nasa team predicts today that foliage on an alien world could be a spectrum of different colours, from yellow to orange or even crimson.