1. Extraterrestial origin of life
Jorge Godínez Leal

2. Panspermia theory
• It says that life came
from comets or
meteorits from
space which hit the
Earth.
• We’re all
descendent of
aliens.

3. Steps of panspermia
1. Organic
molecules evolve in
the space.
2. Life evolves and
microbes survive
inside comets

4. Steps of panspermia
3. Comets or
meteorits hit the
Earth
1º
2º
3º

5. • Panspermia could
be possible
because there are
some hard
bacterias that
could survive
under hard
conditions of
spaceand the
impact with the
surface
• And there are
hints that
bugs could
exist in space,
but is not
sure.