# data[].attributes.body
How do astronomers use radio waves to study space?

# data[].attributes.headline
Why would there be observatories in Iowa?

# data[].attributes.subject
Why would there be observatories in Iowa?

# data[].attributes.body
How have computer systems improved since we sent the first humans to the moon?

# data[].attributes.headline
Why were animals sent into space before human beings? What kind of animals were used and what happened to them?

# data[].attributes.subject
Why were animals sent into space before human beings? What kind of animals were used and what happened to them?

# data[].attributes.headline
Why and how does SETI study the possibility of life on other planets?

# data[].attributes.subject
Why and how does SETI study the possibility of life on other planets?

# data[].attributes.body
Why did our ancestors name constellations? How did they use the stars?

# data[].attributes.headline
Why has the Space Shuttle mission been discontinued?

# data[].attributes.subject
Why has the Space Shuttle mission been discontinued?

# data[].attributes.headline
How did the Apollo 11 team overcome their catastrophe in space?

# data[].attributes.subject
How did the Apollo 11 team overcome their catastrophe in space?

# data[].attributes.body
Is anyone planning for what we would do if a meteor headed towards the earth

# data[].attributes.headline
Is space junk dangerous to satellites and space ships?

# data[].attributes.subject
Is space junk dangerous to satellites and space ships?

# data[].attributes.headline
Compare the weather on Mars and Earth - could we survive there? How?

# data[].attributes.subject
Compare the weather on Mars and Earth - could we survive there? How?

# data[].attributes.headline
Why don't planets travel in straight lines?

# data[].attributes.subject
Why don't planets travel in straight lines?

# data[].attributes.body
How do astronomers study galaxies, which can be millions or billions of light-years away - so far away that most just look like fuzzy patches of light?

# data[].attributes.headline
Why did Edwin Hubble think the universe was expanding?

# data[].attributes.subject
Why did Edwin Hubble think the universe was expanding?

# data[].attributes.body
What is the difference between a galaxy and a solar system?

# data[].attributes.body
How do astronomers take photos of space?

# data[].attributes.body
Why is Voyager I especially important to the University of Iowa?

# data[].attributes.body
Should we try to return to the moon?

# data[].attributes.headline
Do you think we might be able to fly to another solar system as we discover more math and physics? Why or why not?

# data[].attributes.subject
Do you think we might be able to fly to another solar system as we discover more math and physics? Why or why not?

# data[].attributes.headline
How do you think math and physics help astronomers understand planets, stars, and solar systems?

# data[].attributes.subject
How do you think math and physics help astronomers understand planets, stars, and solar systems?

# data[].attributes.body
What have different generations thought about Halley's comet?

# data[].attributes.headline
Do meteorites cause significant damage to our planet?

# data[].attributes.subject
Do meteorites cause significant damage to our planet?

# data[].attributes.headline
Why is Pluto no longer considered a planet?

# data[].attributes.subject
Why is Pluto no longer considered a planet?

# data[].attributes.headline
Jupiter is mostly gas. How does that affect its mass and its planets?

# data[].attributes.subject
Jupiter is mostly gas. How does that affect its mass and its planets?

# data[].attributes.body
Why is the mass of Mercury so great?

# data[].attributes.headline
Why haven't human beings returned to the moon?

# data[].attributes.subject
Why haven't human beings returned to the moon?

# data[].attributes.body
Do sunspots affect the earth?

# data[].attributes.headline
What happens to the human body after it spends a long period in outer space?

# data[].attributes.subject
What happens to the human body after it spends a long period in outer space?

# data[].attributes.body
Why do astronauts train underwater?

# data[].attributes.headline
Why is the International Space Station still being used and supported?

# data[].attributes.subject
Why is the International Space Station still being used and supported?

# data[].attributes.headline
Why was the Space Shuttle mission eliminated?

# data[].attributes.subject
Why was the Space Shuttle mission eliminated?

# data[].attributes.body
What is the future of the International Space Station?

# data[].attributes.headline
Why was Sputnik important in the development of technology in the United States?

# data[].attributes.subject
Why was Sputnik important in the development of technology in the United States?

# data[].attributes.body
What do radio telescopes do?

# data[].attributes.body
Why have telescopes been so important in the study of space?

# data[].attributes.headline
What is the difference between astrology and astronomy?

# data[].attributes.subject
What is the difference between astrology and astronomy?

# data[].attributes.headline
How did early explorers use the stars to navigate?

# data[].attributes.subject
How did early explorers use the stars to navigate?

# data[].attributes.body
Ptolemy - why was he important in the study of astronomy?