"We know that Mars once had liquid substances flowing over its surface, but why do we think it was water? Could it not have been something else?"
Content with the tag: “mass extinction”
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Dinosaur-Killer was Soft on Algae
.jpg.jpg?image=/images/324.jpg&width=452 "A view of the sea cliff at Stevns Klint, Denmark. Credit: R. Summons")
A view of the sea cliff at Stevns Klint, Denmark. Credit: R. Summons
The asteroid impact that many researchers claim was the cause of the dinosaur die-off was bad news for marine life at the time as well. But new research funded by NASA shows that microalgae – one of the primary producers in the ocean – bounced back from the global extinction in about 100 years or less.Source: [astrobio.net]
October 2, 2009 / Written by: Michael Schirber
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Echoes of Extinction
The mass extinction of the dinosaurs and many other organisms 65 million-years-ago has left lasting effects on the evolution of life on Earth. A team of NASA-funded researchers has performed a global study on marine bivalves, and the results indicate that these organisms began originating new species faster than ever following the end of the Cretaceous period.
Source: [Astrobiology Magazine]
February 13, 2009 / Posted by: Aaron Gronstal
A search for primordial water from deep in the Earth's mantle
ROADMAP OBJECTIVES: 1, 4
A Self-Perpetuating Catalyst for the Production of Organics in Protostellar Nebulae
ROADMAP OBJECTIVES: 1, 3
Acquisition and Installation of a new Cameca ims 1280 ion microprobe
ROADMAP OBJECTIVES:
Advancing Techniques for in situ Analysis of Complex Organics
ROADMAP OBJECTIVES: 2, 2, 3, 3, 7
Application of U-tube and fiber-optic distributed temperature sensor to characterize the chemical and physical properties of a deep permafrost and sub-permafrost environment at High Lake, Nunavut, Canada.
ROADMAP OBJECTIVES: 2, 5, 5, 7
Astrobiology Sample Analysis Program (ASAP)
ROADMAP OBJECTIVES:
Biological potential of Mars
ROADMAP OBJECTIVES: 2, 3
Biosignatures in chemosynthetic and photosynthetic systems
ROADMAP OBJECTIVES: 2, 4, 5, 5, 6, 7, 7
Breakdown of methane due to electric discharge: A Laboratory Investigation with Relevance to Mars
ROADMAP OBJECTIVES: 2
Chemical Models of Nebular Processes
ROADMAP OBJECTIVES: 1
Composition of Parent Volatiles in Comets: Oxidized Carbon
ROADMAP OBJECTIVES:
Current Status and Future Bioastronomy with the Large Millimeter Telescope
ROADMAP OBJECTIVES: 3
Early Metabolic Pathways
ROADMAP OBJECTIVES: 2, 3
Early Metabolic Pathways
ROADMAP OBJECTIVES: 3, 3
Fingerprinting Late Additions to the Earth and Moon via the Study of Highly Siderophile Elements in Lunar Impact Melt Rocks
ROADMAP OBJECTIVES: 1
Formation and Detection of Hot-Earth Objects in Systems with Close-in Jupiters
ROADMAP OBJECTIVES: 1, 1
Formation of Planetesimals in a Dynamically Evolving Nebula
ROADMAP OBJECTIVES: 1
Genes that regulate photosymbiotic relationships
ROADMAP OBJECTIVES: 2
Habitable Planets
ROADMAP OBJECTIVES: 1, 1, 2, 4
Icelandic subglacial lakes
ROADMAP OBJECTIVES: 2, 4, 5, 6
Interplanetary Pioneers
ROADMAP OBJECTIVES: 5, 6
Microbial Communities and Activities in the Deep Marine Subsurface
ROADMAP OBJECTIVES: 5, 5, 6, 6
Modeling grain surface reaction pathways for large organic molecules
ROADMAP OBJECTIVES: 3
Organic and Inorganic Acids from Ion-irradiated Ices
ROADMAP OBJECTIVES: 2, 3, 7
Origin and Evolution of Organics
ROADMAP OBJECTIVES: 1, 2, 3
Origin and Evolution of Organics in Planetary Systems
ROADMAP OBJECTIVES: 1, 3, 3
Origin of Irregular Satellites
ROADMAP OBJECTIVES: 1
Prebiotic Organics from Space
ROADMAP OBJECTIVES: 1, 2, 2, 3, 3, 4, 7, 7
Protist diversity in extreme environments
ROADMAP OBJECTIVES: 6, 7
Recovery of comet 85P/Boethin for the Deep Impact Extended Mission
ROADMAP OBJECTIVES: 2
Research Activities in the Astrobiology Analytical Laboratory
ROADMAP OBJECTIVES: 1, 2, 2, 3, 7
Sediment-buried basement deep biosphere
ROADMAP OBJECTIVES: 1, 3, 4, 5, 5, 5, 6, 6
Societal and Philosophical Aspects of Astrobiology
ROADMAP OBJECTIVES: 18
Studies in Planetary Formation and Evolution
ROADMAP OBJECTIVES: 8, 9, 11, 12
Studies of Organic Matter and Water in Meteorites
ROADMAP OBJECTIVES: 1, 8, 9, 11
The Main Belt distribution of basaltic asteroids
ROADMAP OBJECTIVES: 2
THE VYSOS PROJECT
ROADMAP OBJECTIVES: 1
Ultra-violet processing of ices in the Rosette Nebula
ROADMAP OBJECTIVES: 3
Understanding the Microbial Ecology of Geologically-based Chemolithoautotrophic Communities
ROADMAP OBJECTIVES: 2, 4
A search for primordial water from deep in the Earth's mantle
ROADMAP OBJECTIVES: 1, 4
A Self-Perpetuating Catalyst for the Production of Organics in Protostellar Nebulae
ROADMAP OBJECTIVES: 1, 3
Acquisition and Installation of a new Cameca ims 1280 ion microprobe
ROADMAP OBJECTIVES:
Advancing Techniques for in situ Analysis of Complex Organics
ROADMAP OBJECTIVES: 2, 2, 3, 3, 7
Application of U-tube and fiber-optic distributed temperature sensor to characterize the chemical and physical properties of a deep permafrost and sub-permafrost environment at High Lake, Nunavut, Canada.
ROADMAP OBJECTIVES: 2, 5, 5, 7
Astrobiology Sample Analysis Program (ASAP)
ROADMAP OBJECTIVES:
Biological potential of Mars
ROADMAP OBJECTIVES: 2, 3
Biosignatures in chemosynthetic and photosynthetic systems
ROADMAP OBJECTIVES: 2, 4, 5, 5, 6, 7, 7
Breakdown of methane due to electric discharge: A Laboratory Investigation with Relevance to Mars
ROADMAP OBJECTIVES: 2
Chemical Models of Nebular Processes
ROADMAP OBJECTIVES: 1
Composition of Parent Volatiles in Comets: Oxidized Carbon
ROADMAP OBJECTIVES:
Current Status and Future Bioastronomy with the Large Millimeter Telescope
ROADMAP OBJECTIVES: 3
Early Metabolic Pathways
ROADMAP OBJECTIVES: 2, 3
Early Metabolic Pathways
ROADMAP OBJECTIVES: 3, 3
Fingerprinting Late Additions to the Earth and Moon via the Study of Highly Siderophile Elements in Lunar Impact Melt Rocks
ROADMAP OBJECTIVES: 1
Formation and Detection of Hot-Earth Objects in Systems with Close-in Jupiters
ROADMAP OBJECTIVES: 1, 1
Formation of Planetesimals in a Dynamically Evolving Nebula
ROADMAP OBJECTIVES: 1
Genes that regulate photosymbiotic relationships
ROADMAP OBJECTIVES: 2
Habitable Planets
ROADMAP OBJECTIVES: 1, 1, 2, 4
Icelandic subglacial lakes
ROADMAP OBJECTIVES: 2, 4, 5, 6
Interplanetary Pioneers
ROADMAP OBJECTIVES: 5, 6
Microbial Communities and Activities in the Deep Marine Subsurface
ROADMAP OBJECTIVES: 5, 5, 6, 6
Modeling grain surface reaction pathways for large organic molecules
ROADMAP OBJECTIVES: 3
Organic and Inorganic Acids from Ion-irradiated Ices
ROADMAP OBJECTIVES: 2, 3, 7
Origin and Evolution of Organics
ROADMAP OBJECTIVES: 1, 2, 3
Origin and Evolution of Organics in Planetary Systems
ROADMAP OBJECTIVES: 1, 3, 3
Origin of Irregular Satellites
ROADMAP OBJECTIVES: 1
Prebiotic Organics from Space
ROADMAP OBJECTIVES: 1, 2, 2, 3, 3, 4, 7, 7
Protist diversity in extreme environments
ROADMAP OBJECTIVES: 6, 7
Recovery of comet 85P/Boethin for the Deep Impact Extended Mission
ROADMAP OBJECTIVES: 2
Research Activities in the Astrobiology Analytical Laboratory
ROADMAP OBJECTIVES: 1, 2, 2, 3, 7
Sediment-buried basement deep biosphere
ROADMAP OBJECTIVES: 1, 3, 4, 5, 5, 5, 6, 6
Societal and Philosophical Aspects of Astrobiology
ROADMAP OBJECTIVES: 18
Studies in Planetary Formation and Evolution
ROADMAP OBJECTIVES: 8, 9, 11, 12
Studies of Organic Matter and Water in Meteorites
ROADMAP OBJECTIVES: 1, 8, 9, 11
The Main Belt distribution of basaltic asteroids
ROADMAP OBJECTIVES: 2
THE VYSOS PROJECT
ROADMAP OBJECTIVES: 1
Ultra-violet processing of ices in the Rosette Nebula
ROADMAP OBJECTIVES: 3
Understanding the Microbial Ecology of Geologically-based Chemolithoautotrophic Communities
ROADMAP OBJECTIVES: 2, 4
.jpg.jpg?image=/images/324.jpg&width=950 "A view of the sea cliff at Stevns Klint, Denmark. Credit: R. Summons")
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