next stop: mars!
DESCRIPTION
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 - PowerPoint PPT PresentationTRANSCRIPT
Next Stop: Mars!
Walter S. Kiefer
Lunar and Planetary Institute
Earth and Mars
Basic Facts about Mars
Diameter:Mars Day:
Mars Year:Mass:
Gravity:Atmosphere:Atmospheric
Pressure:Surface
Temperature:
6,794 km (53% of Earth)24 hours 37 minutes687 Earth days11% of Earth38% of Earth95% Carbon Dioxide< 1% of Earth at sea
level
-125 to +20 Celsius
Giant Volcanos
Valles Marineris
An Impact Scarred Surface
Ancient Floods
50 km
Phobos and Deimos
A Desert World
A Geologic Time Machine
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.