Chapter 30.2 Flashcards
How did the solar system form?
When a nebula collapsed
How long ago was the solar system formed?
4.6 billion years ago
What type of atmosphere does Mercury have?
Mercury has no true atmosphere
Which planet is Earth’s sister planet?
Venus
What type of atmosphere does Venus have?
Dense & hot atmosphere
Temperatures on Earth allow water to exist in what states?
Solid, liquid, gas
What is another name for Mars?
The red planet
Why is Mars red?
The iron oxide in some of the weathered rocks
How many moons does Mars have?
Two moons
What are the names of Mars’s Moons?
Phobos and Deimos
What does Phobos mean?
Fear
What does Deimos mean?
Panic
What was Spirit and Opportunity’s mission?
Find liquid water
What was Mars Reconnaissance Orbiter discover?
Sediment layering and gullies
What did Mariner 9 space probe discover?
Valles Marineris (A large canyon) Large extinct volcanoes
What was the mission of Viking 1&2?
Photographed Mars entire surface
What did the global surveyor discover?
Showed that the walls of Valles Marineris have distinct layers similar to those of the Grand Canyon
What did the Odyssey provide evidence for?
Provided evidence for water as frost beneath a thin layer of soil in the far northern and southern parts of Mars
What did the Mars Pathfinder mission discover?
Sojourner (Rover) gathered data that indicated that iron in Mar’s crust may have been leached out by groundwater
Where did the Curiosity rover land?
Gale Crater
What were the goals of Curiosity?
To investigate climate and geology, collect evidence for microbial life, and the planetary habitability for future human exploration
