UCLA ASTRO 5 FINAL NEWEST ACTUAL WITH

UCLA ASTRO 5 FINAL NEWEST ACTUAL / WITH

QUESTIONS AND ANSWERS.VERIFIED/GRADED A+

Why would we want to send unmanned missions instead of piloted missions into space? - ---Answers---It's cheaper, quicker, less dangerous

What is Voyager 1 and why is it important? - ---Answers--- Voyager 1 is a probe traveling into interstellar space. It was sent out in 1977, and it's important because on board is a golden record with a map and instructions on how to play the record. This would be our first communication with extra terrestrial intelligence.

Explain the purposes of Mercury, Gemini, and Apollo missions.

- ---Answers---Mercury: Can we survive in space?

Gemini: Perform more complex maneuvers in space, like

rendezvous and docking.

Apollo: Get to the moon!

How was the ISS built? What sorts of experiments have we done from the ISS? - ---Answers---Assembled IN SPACE by 16 countries' astronauts - NOT built on Earth, then sent up.Experiments with bone loss/osteoporosis, study Earth and monitor water quality, plant growth in microgravity, fire suppression in space. 1 / 2

Besides the Earth and Moon, what's the most visited body in the Solar System? - ---Answers---Mars

What missions went to each planet, and what have we learned

about each planet? - ---Answers---1. Mercury: Mariner 10,

Messenger. No atmosphere, very hot, not that interesting.

2. Venus: Mariner 2, Venus Express. Very hot on surface,

rotates opposite of Earth, CO2 atmosphere, high pressure

3. Mars: Viking I, Mars Global Surveyor, Mars Climate Orbiter,

Pathfinder/Sojourner, Spirit Opportunity, Curiosity. Mars once had liquid water on surface, lost atmosphere when core movement stopped, maybe once had life.

4. Jupiter: Pioneer 10, Galileo, Juno. Liquid water on moon

Europa, which had magnetic field and 10 feet of ice on surface.Big red spot is giant storm.

5. Saturn: Cassini. Very thin rings in thin plane, moon Titan and

Inceladus probably has liquid methane.

5. Uranus: Voyager 2. Uranus spins sideways as it orbits sun.

Rings just like Saturn.

What is New Horizons and why is it important? - ---Answers-- -Studied Pluto. Shockingly, not a ton of craters on surface which is strange. Found that plate tectonics constantly refresh Pluto.

What is happening right now with Rosetta and Philae? - --- Answers---They've landed on a comet formed far from the sun. It 'died' from lack of sun, but now has woken back up.

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