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Milky Way
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Are names given to black holes?
(Advanced)
Are the planes of solar systems aligned with the plane of the Galaxy?
(Intermediate)
Can any galaxies be seen with the naked eye?
(Beginner)
Can we look back in time and see our galaxy forming?
(Intermediate)
Can we make a movie of the Milky Way galaxy's rotation?
(Beginner)
Considering the motion of the Earth, the solar system, and the galaxy, how fast am I moving while lying in bed asleep?
(Intermediate)
Could there be life in the galaxies nearest to the Milky Way?
(Intermediate)
Could you tell me about the life cycle of galaxies?
(Intermediate)
Does the Milky Way spin counter-clockwise? If so, do all spiral galaxies spin in this direction and why?
(Beginner)
Does the Sun move around the Milky Way?
(Intermediate)
Has anyone made a map of the Milky Way?
(Beginner)
How can we estimate the number of Earth-like planets in the Galaxy?
(Intermediate)
How can we find galaxies behind the Milky Way?
(Intermediate)
How can we know that there are other galaxies if we cannot leave ours?
(Beginner)
How can we see the Milky Way if we are inside it?
(Intermediate)
How do galaxies collide in an expanding universe?
(Intermediate)
How do stars move in the Galaxy?
(Intermediate)
How do we know the Milky Way is a spiral galaxy?
(Intermediate)
How do we know what parameters to use when simulating the collision of the Milky Way and Andromeda?
(Advanced)
How long has humanity known that we live in a galaxy similar to others in the Universe?
(Intermediate)
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What colors are visible through an amateur telescope? (Intermediate)
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How much does the Earth "wobble" on its orbit due to the Moon's gravity? (Intermediate)
Why is the sun red? During sunset, Northeastern US, Summer 2021 (Beginner)
Why do rays from Sun appear to converge at a point? (Beginner)
But seriously: what was there before the Big Bang? (Beginner)
How far can photons move freely in the early universe (Advanced)
How likely is it that the Solar System has had or will have a close encounter with another star? (Intermediate)
How do we know what we observe is x light years away? (Beginner)
What makes quantum mechanics and general relativity incompatible? (Advanced)
What are we doing about Space Junk?
What what a black hole merger look like from a telescope? (Advanced)
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What is the universe expanding into? (Intermediate)
What do I need to do to become an astronomer? (Beginner)
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Why is looking out into space the same as looking back in time? (Beginner)
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How does the position of Moonrise and Moonset change? (Intermediate)
Why is the moon in a different place every night? (Beginner)
Are there telescopes that can see the flag and lunar rover on the Moon? (Beginner)
How do astronauts take baths and use restrooms in space? (Beginner)
Can any comparison be made between spiral galaxies and hurricanes? (Intermediate)
How do supernovae show us that the Universe's expansion is accelerating? (Advanced)
Do asteroids hit the Sun? (Beginner)
How can you tell the difference between single and multiple extrasolar planets? (Intermediate)
Have astronomers discovered Earth's second moon? (Intermediate)
What is the difference between a "star" and a "sun"? (Beginner)
How do you measure the distance between Earth and the Sun? (Intermediate)
What is the difference between a "star" and a "sun"? (Beginner)
How does the position of Moonrise and Moonset change? (Intermediate)
How long could life on Earth survive if the Sun stopped shining? (Beginner)
Are there telescopes that can see the flag and lunar rover on the Moon? (Beginner)
Why do the planets orbit the sun? (Beginner)
Why is the moon in a different place every night? (Beginner)
At what speed does the Earth move around the Sun? (Beginner)
But seriously: what was there before the Big Bang? (Beginner)
How much does the Earth "wobble" on its orbit due to the Moon's gravity? (Intermediate)
What is the difference between a "star" and a "sun"? (Beginner)
How do you measure the distance between Earth and the Sun? (Intermediate)
How long could life on Earth survive if the Sun stopped shining? (Beginner)
Why do the planets orbit the sun? (Beginner)
Are there telescopes that can see the flag and lunar rover on the Moon? (Beginner)
How does the position of Moonrise and Moonset change? (Intermediate)
At what speed does the Earth move around the Sun? (Beginner)
Why is the moon in a different place every night? (Beginner)
How can we see the Milky Way if we are inside it? (Intermediate)
But seriously: what was there before the Big Bang? (Beginner)
What's going to happen on December 21st 2012? (Intermediate)
What color is each planet? (Intermediate)
At what speed does the Earth move around the Sun? (Beginner)
How far is each planet from Earth? (Intermediate)
Is the Moon moving away from the Earth? When was this discovered? (Intermediate)
How do you measure the distance between Earth and the Sun? (Intermediate)
Why do the planets orbit the sun? (Beginner)
What is the significance of the Tropic of Cancer, Tropic of Capricorn, Arctic Circle and Antarctic Circle? (Beginner)
When was the last time all of the planets were aligned? (Beginner)
How long does it take for the Sun's light to reach us? (Beginner)
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The Milky Way
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SETI & Extraterrestrial Life
Physics
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The Theory of Relativity
People & Astronomy
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The History of Astronomy
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