Life on Other Planets Focus
When it comes to finding life on other planets the most important fact is that there are a variety of conditions that astronomers look for when determining if a planet can harbor life or not. First off is the planet’s distance from the sun.
The planet has to be in the “Goldilocks Zone,” i.e. not to far from the sun and not to close that way the temperatures are modest and an atmosphere is allowed to take shape. This also provides a correct environment for liquid water to form, and with liquid water life has the potential to begin.
The physical properties of a planet is also key to the foundation of life. Professor Geoff Marcy is an astronomer from the University of California, Berkley and is a part of the Keppler Mission which is dedicated to finding and mapping out new planets.
When they look for potential planets that could harbor life, they look to see if the planet has “a hard, rocky surface to allow water to puddle on its surface in ponds, lakes, and oceans.”