Title: Is there life on other planets? - TellmeWhyFacts | Science News
Headings: Is there life on other planets?
Is there life on other planets?
Life on Other Planets:
[highlight ]The greatest chance for life in space : Jupiter’s moon Europa [/highlight]
Plate tectonics can mean life on Jupiter’s moon Europa
[highlight ]Second largest chance for life in space : Mars [/highlight]
Ice at the poles protects possible remnants of life
[highlight ]The third largest chance for life in space : Enceladus [/highlight]
Life could exist in underground sea
Video: Is there possible life signs on other planets
3 Requirements for life on planets in space
LIQUID WATER
ENERGY
CHEMISTRY

Content: Is there possible life signs on other planets
3 Requirements for life on planets in space
In order to decide for the possibility of life on other planets or moons, the three prerequisites researchers are looking for are; water, energy and chemicals. LIQUID WATER
All cells contain liquid water, and there is certain clues reveals that the life on Earth started in the sea. Astro Biologists therefore believes that a stable amount of liquid water, is the first condition for life. ENERGY
All living organisms have a metabolism that requires energy. It may come from the sun or chemical energy, which the organism extracts by burning nourishment. CHEMISTRY
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All life on Earth is made up of molecules that are complex combinations of elements such as carbon, hydrogen and nitrogen.