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PANSPERMIA:

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PANSPERMIA: NEW VENEREAL DISEASE OR THE BEGINNINGS OF LIFE ON EARTH? or? Panspermia Panspermia Panspermia Hypothesized in 1864 that life must have come from an ... – PowerPoint PPT presentation

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Title: PANSPERMIA:


1
PANSPERMIA
  • NEW VENEREAL DISEASE OR THE BEGINNINGS OF LIFE ON
    EARTH?

or
?
2
Panspermia
  • According to the AMA, and good news to men
    everywhere, panspermia is not a VD

?

3
Panspermia
  • According to the AMA, and good news to men
    everywhere, panspermia is not a VD
  • Actually, its a theory about lifes origin from
    the cosmos

?

4
Panspermia
  • According to the AMA, and good news to men
    everywhere, panspermia is not a VD
  • Actually, its a theory about lifes origin from
    the cosmos
  • Crazy?

?

5

Bacteria in TUBES???
  • Hypothesized in 1864 that life must have come
    from an extraterrestrial source
  • There is no known circumstance in which it can
    be confirmed that microscopic beings came into
    the world without germs, without parents similar
    to themselves

Louis Pasteur
6

Bacteria in TUBES???
  • The Experiment
  • Using a sterile glass flask, he showed that
    cultures cannot be formed from plain air
  • Only after adding germs to the air would this
    form

Scientific Gold!
Louis Pasteur
7

Bacteria in SPACE???
  • Can bacteria survive the long, harsh journey to
    Earth?
  • Can bacteria then survive entering Earths
    atmosphere?
  • Finally, can bacteria survive the impact with
    Earth and then flourish?

8

Bacteria in SPACE!!!
  • Found in the most
  • EXTREME-EME-EME-EME conditions on Earth
  • Can lie dormant for millions of years
  • Able to survive entry into Earths Atmosphere

9
Cometic Tragedy
  • Comets are icy, giving the bacteria nourishment
  • Cold, which makes them good insulators
  • They break up in the atmosphere

10
and then Pasteur said, LET THERE BE PROOF, and
it was done, and Pasteur was happy
11

Fossil Record
  • Its a bird Its a plane Itsthe fossil
    record?
  • Life seems to have appeared very rapidly in the
    history of the planet

12

The Second Law of Thermodynamics
  • in a closed system, you can't finish any real
    physical process with as much useful energy as
    you had to start with some is always wasted

13
Tree of Life
  • Widely believed that without new genetic
    material, the tree of life would be horizontal,
    not vertical
  • New genetic material from space would account for
    the genetic diversity we see in early life

14

A Final Note...
  • Panspermia Were we brought here by comets?
  • Well thats up to you to decide
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