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Characteristics
Moons
Atmosphere/ Climate
Volcanoes/ Topography
Exploration
100
What is Mars' average distance to the sun?
1.5 AU or 230 million km
100
What is Mars' largest moon?
Phobos
100
What is the most abundant gas in Mars' atmosphere?
Carbon Dioxide
100
What is largest volcano on Mars?
Olympus Mons
100
When were Viking 1 and 2 launched?
1975
200
What is the mass of Mars compared to that of the Earth?
.11 or 11%
200
When was Deimos discovered?
1877
200
What is the average surface temperature on Mars?
-60°C
200
What is the name given to Pavonis Mons, Arsia Mons, and Ascraeus Mons?
Tharsis Montes
200
What was the first successful mission to Mars?
Mariner 4
300
What is Mars' radius compared to the radius of Earth?
.53 or 53%
300
How long does it take Deimos to orbit Mars?
30 hours
300
What is the average atmospheric pressure on Mars?
7.5 mb
300
What are the paler plains covered with dust, sand, and iron oxide called?
Terra
300
Which rover was the first to land of Mars' surface?
Sojourner
400
How long is Mars' orbital semimajor axis?
1.5 AU or 227.9 million km
400
What does "Phobos" mean in Greek mythology?
Fear
400
What is the region of Mars' atmosphere that is the farthest away from it's surface?
Exosphere
400
The North Polar Basin covers how much of Mars?
40%
400
When was the Mars Global Surveyor launched?
1996
500
What is the surface gravity of Mars compared to that of Earth?
.38 or 38%
500
Which moon has a greater orbital eccentricity?
Phobos
500
What is the air current in the middle atmosphere called?
A jetstream
500
What is the largest recognized impact basin on Mars?
Utopia Planitia
500
Which rover lived past its expected lifetime and is still functioning today?
Opportunity