Astrobiology Education

By: Sa’Quan Eangleheart

Properties Of Water• Water can dissolve most substances and can

hold nutrients for organisms.• It takes a lot of energy and time for water

temperature to increase and decrease unlike other liquids because of its specific heat.

• Cohesion lets water molecules stick to one another.

• Adhesion allows water to stick to some surfaces.

What does organic mean?• Organic means anything that alive or a part of

a living thing.

What Chemical Elements Are Important For Life?

• Carbon, Nitrogen, Phosphrous, Sulfur, Hydrogen, and Oxygen

• Proteins-made of smaller molecules called amino acids.

• Lipids which is a type of fat.• Carbon hydrates which are sugars and starch’s.• Nucleic Acids• DNA and RNA carry your genetic information.• Smaller molecules create nucleotides.

What evidence is there that these organic molecules originated on Earth?

• Scientist Miller and Urey had shown that atmosphere of early earth could made some amino acids.

• Other experiments shown chemistry of early earth might have made some nucleotide's.

What proof is there to show molecules came from Meteors or Comets?• Different scientist have came with all types of ways that organic

molecules might have been brought to Earth by Meteors or Comets• NAI-funded researcher Scott Sandford at NASA Ames Research Center

and Fred Ciesla at the University of Chicago have proven facts that meteor and comets contain molecules from experiments they have done in the past.

• Ceisla had studied the universal process and made multiple experiments about them.

• Stanford had did a lot of laboratory research to liquid processes that happen when high-energy ultraviolet radiation bombards plain ice like those seen in our milky way galaxy.