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Next Stop: Mars!. Walter S. Kiefer Lunar and Planetary Institute. Earth and Mars. Diameter: Mars Day: Mars Year: Mass: Gravity: Atmosphere: Atmospheric Pressure: Surface Temperature:. 6,794 km (53% of Earth) 24 hours 37 minutes 687 Earth days 11% of Earth 38% of Earth
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Next Stop: Mars! Walter S. Kiefer Lunar and Planetary Institute
Diameter: Mars Day: Mars Year: Mass: Gravity: Atmosphere: Atmospheric Pressure: Surface Temperature: 6,794 km (53% of Earth) 24 hours 37 minutes 687 Earth days 11% of Earth 38% of Earth 95% Carbon Dioxide < 1% of Earth at sea level -125 to +20 Celsius Basic Facts about Mars
Ancient Floods 50 km
Life on Mars? • Look for evidence of respiration, response to nutrients. • Results probably indicate unusual soil chemistry. • No evidence for organic molecules at the parts per billion level. • Claimed evidence for life in martian meteorite is not generally accepted.