Life elsewhere in the solar system

• Do these conditions exist anywhere else in the solar system?

  • Venus and Mars, no liquid water (or any other liquid).
  • Mars probably had liquid water in the past.
    • Some claim Martian meteorites contain signs of life. Others claim these are “microfossils” are made by non-living processes
  • Giant planets? No solid surface. Maybe life floating in the atmosphere, or life in liquid hydrogen ocean? We may never know.
  • Moons?
    • Europa has liquid water underneath the ice, and hydrothermal energy source.
    • Titan has an atmosphere of methane and ammonia. Organic molecule smog. Liquid methane on the surface? Energy source? Very cold...

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