30.2
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
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How did the solar system form?
4.6 billion years ago
What is mercurys atmosphere like?
There is no true atmosphere
What is Venus’s atmosphere like?
It is very dense and very hot
What states can water can water exist as on Earth due to the temperature ?
As a solid, liquid and gas
What is Mars also Know as?
The red planet
Why is Mars red?
It is due to the iron oxide
How many moons does Mars have?
Two moons
What are the names of the two moons?
Phobos and Deimos
What does Phobos and Deimos mean?
Phobos-Fear, Deimos- panic
What was the mission of spirit and opportunity?
in search of liquid water
What did reconnaissance orbiter discover?
Sediment layering and guillies
What did the Mariner 9 space probe discover?
It discovered Valles Mariners- a large canyon and extinct volcanoes
They photographed the entire surface of Mars global surveyor?
It found that the wall of Valles Marineris have some of the same layers as the Grand Canyon
What did the mars odyssey discover?
That there was evidance of water
What data was gathered by the Pathfinder and its Rover Sojouner?
It indicated that iron in Mar’s crust may have leached out groundwater
Where did the Curiosity rover land?
In the gale crater
What were the goals of curiosity?
to investigate climate and geology to collect evidence of microbial life study planetary habitability