Question | Answer |
Atmosphere: none | Mercury |
Rotation Rate: solar day takes 1.5 orbits | Mercury |
Most Elongated Orbit, Sun Makes Retrograde Loops | Mercury |
Magnetic Field: 1% Earth's Intensity | Mercury |
Temp: noon: 400C; 4 mo. night: -150C | Mercury |
First Space Probe to Use Gravitational Slingshot | Mariner 10: Mercury |
Atmospheric Pressure: 90x Earth | Venus |
Severe Case of Global Warming | Venus |
Rotates Clockwise | Venus |
Most Nearly Circular Orbit | Venus |
Magnetic Field: None | Venus |
Hottest Temperature | Venus: 450C |
First Space Probe to Land on a Planet | Venera 7: Venus |
Standing in a Hole Horizon, Hostile Environment | Venus |
Sun Rises in the West and Sets in the East | Venus |
Van Allen Belts | Trap charged particles except at North and South Poles -> Aurora |
Least Stable Surface | Earth |
First Man on the Moon | Apollo 11 |
Atmosphere: 1% of Earth- still enough to form clouds and dust storms | Mars |
Similar Rotation Axis and Seasons to Earth (2) | Mars, Saturn |
Temp: Similar to Antarctica | Mars |
Solar Day Same as Long as Earth | Mars |
Magnetic Field: none | Mars |
Two Moons: Phobos and Deimos | Mars |
Moon that Rises in the West | Phobos (Mars) |
Mars Global Surveyor | chilled for 9 years and took pictures |
First Rover, Used Airbags | Pathfinder: Mars |
Atmosphere of Hydrogen and Helium, no real surface (2) | Jupiter, Saturn |
Solar Day Half as Long as Earth (2) | Jupiter, Saturn |
Temp: -234F | Jupiter |
Temp: -270F | Saturn |
Magnetic Field Same as Earth (2) | Saturn, Uranus |
Atmosphere (60% higher than Earth) Concealed by High Ice Cloud | Saturn |
62+ Moons | Jupiter |
Jupiter's First Flybys | Pioneer 10 & 11 |
First to Go into Orbit around Jupiter | Galileo |
Great Red Spot | Jupiter |
Dark Rings Hard to See- Shepard Moons Contain Rings through Gravitational Interactions | Jupiter |
Largest Moon: Titan | Saturn |
Moon with Methane Snow, Ice, and Oceans | Titan: Saturn |
Square Dancing Moons | J&E: Saturn |
Saturn's Flyby | Pioneer 11 |
First to Target Titan | Voyager 1 |
Cassini-Huygens | First Orbiter-Lander (Saturn) |
Hexagonal Cloud | Saturn |
Atmosphere: Hydrogen, Helium, Methane | Uranus |
Methane Makes Planet Blue (2) | Uranus, Neptune |
17 Hour Solar Day | Uranus |
Axis at Plane of Orbit shows a Ring System that is seen as Near-Circles | Uranus |
Sideways Axis; Magnetic Field thought to be generated from the surface, not the center (2) | Uranus, Neptune |
Temp: -357F | Uranus |
Largest Moon: Titania | Uranus |
Moon with a Check Mark | Miranda (Uranus) |
Only Space Probe to visit Uranus and Neptune | Voyager 2 |
Temp: -353F | Neptune |
Largest Moon: Triton | Neptune |