View
39
Download
0
Category
Tags:
Preview:
DESCRIPTION
Life in exotic water worlds?. Exotic water worlds H ow life-friendly is an ocean deeper than on Earth?. Lena Noack, Dennis Höning , Helmut Lammer and Jan H. Bredehöft 1 May 2014 EGU Press Conference „ Fingerprints of life: from the early Earth to outer space “. Ocean Planets. - PowerPoint PPT Presentation
Citation preview
Life in exotic water worlds?Exotic water worlds
How life-friendly is an ocean deeper than on Earth?
Lena Noack, Dennis Höning, Helmut Lammer and Jan H. Bredehöft
1 May 2014 EGU Press Conference
„Fingerprints of life: from the early Earth to outer space“
Ocean Planets
Water is needed for life (habitable zone)
BUT: Is more water even better for life?
NO!
Water or Ice?
1) Entirely liquid ocean layer2) Sandwich-layer: ice surrounded by water3) Water layer above ice layer
Cooking recipe for lifeLife also needs:
- Energy source (solar, thermal or chemical energy)- Minerals, building blocks of life- A place of reaction
The ocean floor is ideal for origin of life!
Which Ocean Layer will be Liquid?
hot
cold
shallow
deep
large
small
Surface Temperature
Ocean Thickness
Planet Size
More information
PICO-Presentation
Noack et al.
Fr., 13:30-15:00
PICO spot 1, EGU2014-14725
Recommended