life on other planets

China
November 7, 2007 12:24am CST
Life on other planets?Why not? There are 100 billion stars in our galaxy,and over a billion yellow stars like our sun.We do not know if they all have planets,but we have good reason to think that planetary systems are common.Suppose there were only one planet like the earth for every ten yellow stars;that alone makes 100 million worlds comparable to ours -- just in our galaxy!And there are billions of galaxies.
3 responses
jwfarrimond
@jwfarrimond (4473)
•
12 Oct 08
Sure there is life out there but as Star Trek's Mr Spock said: "It's life Jim, but not life as we know it"
mandeep_narang
@mandeep_narang (108)
• India
7 Nov 07
life exists only on this blessed planet earth....because god created restrictions for evrything...earth is his footstool the bible says....
aseretdd
@aseretdd (13730)
• Philippines
7 Nov 07
With the infinite size of the universe... there is always a possibility of life in another planet or in a distant galaxy... but then is the life we have the same with the one that they have?... what is their definition of life?... or culture for that matter... what ever it is... it will surely be lightyears different from ours...