Join in expert discussion on the topics of Astronomy, astrophysics and cosmology. This may include discussion on celestial objects, space, and the physical universe as a whole. Mainstream science only.
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High School
What classes do I need to become an astronomer?
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Undergrad
Books on Cosmology of Stellar Objects
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Undergrad
Composition of matter in the universe
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High School
Comparing Gravity and Big Bang Theory
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High School
Is a Black Hole One-Sided or a Spherical Entity?
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Graduate
The first CMB peak - Flat Universe
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Undergrad
13bn+ lightyears in all directions?
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Graduate
Detecting an Extra-Solar ‘Earth’
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Graduate
Time required to form a black hole
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Graduate
Matter/antimatter, mass questions
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Graduate
Can Dark Energy be a Fifth Force?
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Undergrad
What Happens After the Big Crunch?
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Graduate
Doubt about our spacetime manifold
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Undergrad
Space expansion in our perspective?
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Undergrad
Longest day of year in the tropics
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Undergrad
Will Betelgeuse Go Supernova Soon?
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Undergrad
'Close Encounters' and Galaxy formation
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Graduate
Question about observable universe.
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High School
Mass & Emittance: Does Heat Affect Mass?
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High School
Is Earth's Rotation Really Slowing Down?
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Undergrad
What is a 'Gravitational Slingshot'?
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Graduate
Expansion and conservation of energy
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