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Life on Venus?. Venus Atmosphere Venus Probe-Venus Express Lots of Large Scale mixing in the atmosphere

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Page 1: Life on Venus?. Venus Atmosphere Venus Probe-Venus Express Lots of Large Scale mixing in the atmosphere

Life on Venus?

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Page 2: Life on Venus?. Venus Atmosphere Venus Probe-Venus Express Lots of Large Scale mixing in the atmosphere

Venus Atmosphere

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Page 3: Life on Venus?. Venus Atmosphere Venus Probe-Venus Express Lots of Large Scale mixing in the atmosphere

Venus

Probe-Venus Express

Lots of Large Scale mixing in the atmosphere

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Page 4: Life on Venus?. Venus Atmosphere Venus Probe-Venus Express Lots of Large Scale mixing in the atmosphere

Only glimpse of the surface Soviets had 4 successful Venera landings on

Venus Onboard experiments found basaltic surface Dark surface, albedo of 3-10% Surface winds of ~ 0.3-1.0 m/s Surface temperatures of 740 K Landers lasted 45-60 minutes

Venera 14 – 13 S, 310 E – March 1982

Landers

Page 5: Life on Venus?. Venus Atmosphere Venus Probe-Venus Express Lots of Large Scale mixing in the atmosphere

• Spherical images can be unwraped into a low-res perspective view

• Smooth-ish basaltic rock – low viscosity magmas

Baltis Vallis – 6800 km

Venera 9 – A Blockier Appearance

Venera 13

Page 6: Life on Venus?. Venus Atmosphere Venus Probe-Venus Express Lots of Large Scale mixing in the atmosphere

Venera 10

Venera 14

Page 7: Life on Venus?. Venus Atmosphere Venus Probe-Venus Express Lots of Large Scale mixing in the atmosphere

• Earth and Venus should be the same…– Venus absorbs roughly the same amount of

sunlight as the Earth.– Venus has roughly the same amount of

carbon as the Earth

• …but…– Venus has no plate tectonics– Earth’s carbon get recycled through the crust– Venusian carbon accumulates in atmosphere

What went wrong?

All these differences can be traced back to the lack of water on Venus

Page 8: Life on Venus?. Venus Atmosphere Venus Probe-Venus Express Lots of Large Scale mixing in the atmosphere

Solar System Exploration

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Page 9: Life on Venus?. Venus Atmosphere Venus Probe-Venus Express Lots of Large Scale mixing in the atmosphere

Solar System Exploration

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Page 10: Life on Venus?. Venus Atmosphere Venus Probe-Venus Express Lots of Large Scale mixing in the atmosphere

Solar System Exploration

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