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Mars, No evidence of intelligent life - Coggle Diagram
Mars
Research
wondering since ancient times
1900s
orbiters and landers
gathered data
1990s
NASA
sent remote-controlled rovers
finding more about
Mars' climate and geology
iron oxide (rust)
atmosphere
thin (can't trap heat)
mostly carbon dioxide
humans X
possibility of simpler form of life
microorganism (survive in the cold, and little oxygen)
Features
a lot in common w/ Earth
similar tilt
4 seasons
4th planet from the Sun
terrestrial
made of
rocks and minerals
natural features
mountains and canyons
ice caps on poles
Evidence of life
satellite photos
mountains/craters
dark streaks disappear (cold)
flowing water
'liquid water' is the evidence of life
No evidence of intelligent life