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Hubble Space TelescopeDeep Field View
Milky Way Galaxy
Typical Spiral Galaxy
Keyhole Nebula
Another Nebula in the Milky Way
Etacar Nebula
Crab Nebula
Horse Head Nebula
SunGreek-HeliosLatin-Sol
Sun Spots
Earth
The Planets
Relative Sizes of the Planets
Terrestrial Planets
Jovian Planets
Pluto
MercuryVenusEarthMarsJupiter
SaturnUranusNeptune
The Terrestrial (like Earth)
PlanetsMercury, Venus, Earth, and Mars
Small, rocky / metallic
Thin atmospheres or no atmosphere
Few, if any, moons
Near the Sun (inner planets)
Mercury
Day Time Side600°F
Night Time Side-300°F
Extensive crateringlike the moon
Nearest the sun…fastest moving
Orbital Period = 88 Earth days
No atmosphere or moons
Closer view of craters on Mercury
Venus
Thick cloud coverobscures the surface
High CO2 levels create extreme Greenhouse Effect
Surface temperature > 900°F
Retrograde rotation,Sun rises in the west
Rotation Period = 243 Earth days
Orbital Period = 225 Earth days
No moons
“Day” is longer than a “Year”!
Radar Topographical Mapof the surface of Venus
Closer view of Venusian surface features
Low areas, like ocean basins on the Earth
Coastal plains
Mountainsmany are volcanic
Earth
Ocean basins
Continents
Earth and Moon seen together
Mars
Phobos"fear"
Deimos"panic"
Valles Marineris
Valles Marineris
2500 miles4.5 miles deep
Grand Canyon:270 miles long, 1 mile deep
Olympus Mons"Mount Olympus"
Extinct VolcanoHighest mountain in the Solar System
Olympus Mons
17 miles highMt. Everest is 5 miles high
350 miles wide
Close up view of Martian surface
Evidence of ancient water on the Martian surface
River System with Delta
Features on the Martian surface that have caused “wild”
conjecture concerning the habitation of Mars
Face?
Smiley Face?
Heart?
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