Join in expert discussion on the topics of Astronomy and astrophysics. This may include discussion on celestial objects, space, and the physical universe as a whole. Mainstream science only.
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Why are impact craters predominantly circular?
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Time Dimensions: Astronomy & Beyond
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Spatial Expansion -- Coincidence?
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What would the planets look like in real life?
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Could a black hole just be a planet?
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What does relativity say about wormholes?
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Effect of JWST mirror damage on final images
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Question about deep space pictures
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SOFIA IR Observatory in the Southern Sky
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Derivation for Aphelion and Perihelion Distances
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Scope Eyepiece diameter for old eyes
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Which Way Do Planets in Our Galaxy Spin?
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Our Sun's position in the Milky Way Galaxy
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Accelerating to a stop in the Milky Way Galaxy
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Mini spacecraft to Alpha Centauri
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First Interstellar Asteroid Found
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Can electromagnetic waves traverse wormholes?
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Northern Lights Visible in Mid States Tonight
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Could anything heat back up the core of Mars?
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Is the Earth falling into the sun from gravity?
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The configuration of galaxies in space
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Light and the black matter (Dark Matter)
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Asteroid/Near Earth object mining
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I wonder why massive objects slow down time
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Can the "Dark Energy" concept be wrong?
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How Can We Prove That Space is Expanding?
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Why is the Webb Space Telescope placed at L2?
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Chasing the Moon: Astronauts & Technology".
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The Colors of The Moon (Doppler Effect)
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What If Universes Were Made of Antimatter?
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Question about a horizontal sundial
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Process of a sun changing into a white dwarf
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What is the Maximum Mass of a Neutron Star?
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Stars massive enough to evolve into black holes
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Navigating To Another Star System
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Question re Webb telescope at L2
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Radiation Levels at Earth's Poles
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Acceleration of time due to entropy
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Delta-v from Lagrange points to lunar surface?
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Pressure under the ice of Europa?
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How can we watch BHs collide in a finite time?
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Star visible for longest time from Earth
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Biggest asteroid to pass Earth in 2021
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Betelgeuse unusual dimming - what's up?
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