extra terrestrial life
By pradyumn
@pradyumn (61)
India
November 22, 2006 11:50pm CST
which planet do you think could have a chance of extra terrestrial life????????
7 responses
@pikaapi (1744)
• India
23 Nov 06
Most scientists hold that if extraterrestrial life exists, its evolution would have occurred independently in different places in the universe. An alternative hypothesis, held by a minority, is panspermia, which suggests that life in the universe could have stemmed from a smaller number of points of origin, and then spread across the universe, from habitable planet to habitable planet.
@pikaapi (1744)
• India
23 Nov 06
Panspermia is the hypothesis that the seeds of life are ubiquitous in the Universe, that they may have delivered life to Earth, and that they may deliver or have delivered life to other habitable bodies; also the process of such delivery.
Exogenesis is a related, but less radical, hypothesis that simply proposes that life did not originate on Earth, but was transferred to Earth from elsewhere in the Universe, with no prediction about how widespread life is. The term "panspermia" is more well-known, however, and tends to be used in reference to what would properly be called exogenesis, too.
HAVE A GREAT DAY:)
@blueman (16509)
• India
23 Nov 06
i don't think there i such thing as extra terrestrial life anywhere.
