Reading Citations Flashcards
1
Q
Astro Biology Primer
A
(Domogal-Goldman et al., 2015)
2
Q
(Domogal-Goldman et al., 2015)
A
- defining AstroBio
- defining life
- defining life on Earth
- distinguishing abiotic vs biotic
- space exploration for ET life similar to Earth
- NASA Viking Mars - Big Bang
- star formation/death
- solar system development
- planet formation/differentiation
- how life first emerged
(1) CHNOPS
(2) Polymer/complex molecules synthesis
(3) reaction cycles of complex molecules
(4) macrostructures w/organized compartmentalized reactions
(5) shifts from chemical equilibrium –> homeostasis - changes across development of Earth’s biosphere - higher levels of O2 and N2
- what does Earth tell us about life?
- habitability requirements
- chemical comp of Earth
- life shares common solvent: water
- minimum energy required for life
- potential exceptions for ET life (methane solvent)
- Icy moons
3
Q
(Stueken et al., 2013)
A
- chemical and physical conditions which CHNOPS can be synthesized
- life evolution from Hadean Earth
(1) multiple microenvironments
(2) mineral catalysts led to metabolism
(3) multiple local/global transport processes
(4) global diversity and selection of reactants/products - suggest further research into link between organic precursors, minerals, and fluids
- hydrothermal vents, earth’s oceans
- how Hadean Earth and natural reactions led to biological systems
4
Q
(Gibb, 2015)
A
- organic molecules in solar system and where
- gas and ice giants
ex: Titan, Europa, Uranus, Neptune
5
Q
(Cousins, 2018)
A
ExoMars Rover - ESA and Roscosmos (2020)
- looking for evidence of life
Chemofossils
- compounds left after life decomposes
- Mars geological time capsule - no plate tectonics
-Biosignature Hunt
Contamination
- space exploration contamination
6
Q
(Kasting, 2021)
A
- climate evolution
- estimating boundaries of habitable zones are sun and other stars
- argues FOR restricting our search for life to liquid water-dependent life
- water is polar, solvent
- water needs to be at planet’s surface
7
Q
(Crawford, 2012)
A
- argues FOR efficiency, reliability, and success of human manned missions over Robots
8
Q
(Cockell, 2015)
A
SETI, Fermi
