ASTR 1101-001 Spring 2008 Joel E. Tohline, Alumni Professor 247 Nicholson Hall [Slides from Lecture30]

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ASTR Spring 2008 Joel E. Tohline, Alumni Professor 247 Nicholson Hall [Slides from Lecture30]

Chapter 11: Terrestrial Planets Mercury –Heavily cratered (like the Earth’s moon) –Some evidence of lava flows and shrinkage of the planet’s crust –Generally considered a “dead” planet Venus Mars

Chapter 11: Terrestrial Planets Mercury –Heavily cratered (like the Earth’s moon) –Some evidence of lava flows and shrinkage of the planet’s crust –Generally considered a “dead” planet Venus Mars

Chapter 11: Terrestrial Planets Mercury –Heavily cratered (like the Earth’s moon) –Some evidence of lava flows and shrinkage of the planet’s crust –Generally considered a “dead” planet Venus Mars

Chapter 11: Terrestrial Planets Mercury –Heavily cratered (like the Earth’s moon) –Some evidence of lava flows and shrinkage of the planet’s crust –Generally considered a “dead” planet Venus Mars

Chapter 11: Terrestrial Planets Venus –Rotating very slowly…and backwards! –Atmosphere: Dense, hot, and corrosive! –Properties of atmosphere due to runaway “greenhouse” effect Venus Mars

Venus: Image of the surface of Venus obtained by radar imaging.

Venus: topographic map

Chapter 11: Terrestrial Planets Venus –Rotating very slowly…and backwards! –Atmosphere: Dense, hot, and corrosive! –Properties of atmosphere due to runaway “greenhouse” effect Venus Mars

Chapter 11: Terrestrial Planets Venus –Rotating very slowly…and backwards! –Atmosphere: Dense, hot, and corrosive! –Properties of atmosphere due to runaway “greenhouse” effect Venus Mars

Atmospheres of Earth & Venus

Venus: Ultraviolet image of Venus highlighting the Cloud layer structure.

Chapter 11: Terrestrial Planets Venus –Rotating very slowly…and backwards! –Atmosphere: Dense, hot, and corrosive! –Properties of atmosphere due to runaway “greenhouse” effect Venus Mars

Chapter 11: Terrestrial Planets Mars –Surface imaged by spacecraft extremely well –Surface explored by spacecraft that have successfully soft-landed on surface Viking Lander (VL1 & VL2) Mars Pathfinder (MP) Exploration Rovers (Opportunity & Spirit) –Evidence for (subsurface) water

Chapter 11: Terrestrial Planets Mars –Surface imaged by spacecraft extremely well –Surface explored by spacecraft that have successfully soft-landed on surface Viking Lander (VL1 & VL2) Mars Pathfinder (MP) Exploration Rovers (Opportunity & Spirit) –Evidence for (subsurface) water

Mars: topographic map

Chapter 11: Terrestrial Planets Mars –Surface imaged by spacecraft extremely well –Surface explored by spacecraft that have successfully soft-landed on surface Viking Lander (VL1 & VL2) Mars Pathfinder (MP) Exploration Rovers (Opportunity & Spirit) –Evidence for (subsurface) water

Chapter 11: Terrestrial Planets Mars –Surface imaged by spacecraft extremely well –Surface explored by spacecraft that have successfully soft-landed on surface Viking Lander (VL1 & VL2) Mars Pathfinder (MP) Exploration Rovers (Opportunity & Spirit) –Evidence for (subsurface) water

Mars: topographic map

Chapter 11: Terrestrial Planets Mars –Surface imaged by spacecraft extremely well –Surface explored by spacecraft that have successfully soft-landed on surface Viking Lander (VL1 & VL2) Mars Pathfinder (MP) Exploration Rovers (Opportunity & Spirit) –Evidence for (subsurface) water

Mars: topographic map

Chapter 11: Terrestrial Planets Mars –Surface imaged by spacecraft extremely well –Surface explored by spacecraft that have successfully soft-landed on surface Viking Lander (VL1 & VL2) Mars Pathfinder (MP) Exploration Rovers (Opportunity & Spirit) –Evidence for (subsurface) water

Mars: topographic map

Rover ‘Opportunity’: Landing Site

Rover ‘Opportunity’: Four+ years of travel

Rover ‘Opportunity’: View from edge of Victoria Crater

Chapter 11: Terrestrial Planets Mars –Surface imaged by spacecraft extremely well –Surface explored by spacecraft that have successfully soft-landed on surface Viking Lander (VL1 & VL2) Mars Pathfinder (MP) Exploration Rovers (Opportunity & Spirit) –Evidence for (subsurface) water

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