nai

Project Reports

• Chemical Building Blocks

  ROADMAP OBJECTIVES: 1.1 3.1 3.4 4.3 7.1 7.2

• Celestial Influences on Planetary Environments

  ROADMAP OBJECTIVES: 1.1 2.1 2.2 4.3 6.1

• Benner – Self-Reproducing Molecular Systems and Darwinian Chemistry

  ROADMAP OBJECTIVES: 1.1 2.1 2.2 3.1 3.2 4.1 4.2 4.3 5.1 5.2 5.3 6.2 7.1 7.2

• Biogeochemistry of the Early Earth

  ROADMAP OBJECTIVES: 1.1 3.1 4.1 4.3 5.2 5.3 6.2 7.1 7.2

• The Planetary Context of Biological Evolution: Subproject: Permo-Triassic Mass Extinction and Its Consequences

  ROADMAP OBJECTIVES: 1.1 4.2 4.3 6.1

• Impact Frustration and Subsequent Generation of Biologically Tenable Climates on Earth and Mars

  ROADMAP OBJECTIVES: 1.1 2.1 4.3 6.2

• Habitability of Planetary Bodies

  ROADMAP OBJECTIVES: 1.1 2.1 4.1 4.3

• Dynamics of Comets, Asteroids, and Planets

  ROADMAP OBJECTIVES: 1.1 2.2 4.3

• Evolution of Atmospheric O2, Climate, and Biosphere – Ohmoto

  ROADMAP OBJECTIVES: 1.1 2.1 4.1 4.3 5.2 5.3 6.1 7.1 7.2

• The Late Ordovician Glaciation and Mass Extinction: Environmental Causes and Evolutionary Consequences – Mark Patzkowsky

  ROADMAP OBJECTIVES: 4.3

• Magnetic Biosignatures

  ROADMAP OBJECTIVES: 1.1 2.1 3.1 3.3 4.1 4.2 4.3 5.1 6.1 7.1

• Habitable Planets

  ROADMAP OBJECTIVES: 1.1 2.1 4.3

• Impacts and the Origin, Distribution, and Evolution of Life

  ROADMAP OBJECTIVES: 4.1 4.3 6.1

• Causes of Mass Extinction: Isotopic and Paleontological Constraints

  ROADMAP OBJECTIVES: 4.2 4.3 6.1

• Causes of Mass Extinctions: Testing Impact Models

  ROADMAP OBJECTIVES: 4.2 4.3

• A Timescale for the Evolution of Life on Earth – Hedges

  ROADMAP OBJECTIVES: 1.2 2.1 3.4 4.1 4.2 4.3 5.2 5.3 7.1 7.2

• A Timescale for the Evolution of Life on Earth – Nei

  ROADMAP OBJECTIVES: 1.2 2.1 3.4 4.1 4.2 4.3 5.2 5.3 7.1 7.2

• Evolution of Atmospheric O2, Climate, and Biosphere – Kump

  Ellen Herman (MS Student) has received some support from the Pennsylvania State Astrobiology Research Center (PSARC) to develop a numerical model of the microbial mat

  ROADMAP OBJECTIVES: 4.1 4.2 4.3 5.2 6.1