Presentation on theme: "Is there life on other planets? Megan, Brianna,Sam."— Presentation transcript:
Is there life on other planets? Megan, Brianna,Sam
Is there really life on other planets? The possibility that life may exist on other planets is something which has long fascinated the world and managed to bring together groups of individuals that would otherwise never even think of intermingling.
What is life on other planets? Extraterrestrial life is defined as life that does not originate from Earth. It is often also referred to as alien life, or simply aliens. These hypothetical forms of life range from simple bacteria-like organisms to beings far more complex than humans.
SETI Project. SETI stands for the Search for Extraterrestrial Intelligence. It is a project which started in 1959 to search for radio signals from intelligent life in space. The SETI project uses radio telescopes from around the world to scan the sky and look for special patterns in radio waves which could have been sent by another civilization in space. We have been sending out our own radio waves into space for over sixty years. All of our radio and television signals travel into space at the speed of light and may one day be detected by another civilization in space.
Radio Telescopes This is an example of a radio telescope that the SETI project would use.
What people think? Most people do believe that there is life on other planets. If you think about how many stars and planets and suns we have in our universe. Why would there only be human beings or living things on just our planet? There is no proof that these extraterrestrial beings actually exist.
Gliese 581g Mass is 3 to 4 times bigger than earth. The distance from the earth is 20 light years away. It would take 200 years to get their traveling 19,000 miles per second. It is one of the six planets to orbit the star Gliese 581. Its year is 37 of our earth days. Gravity is similar or slightly higher than earth. It is rocky with liquid water and an atmosphere. So as far as scientist know their could be life on this planet.