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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What happen when we reach black hole?
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Confusion regarding Solar Eclipse
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Help Solving Equation: Notation Explained
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T: What Stars Are We Seeing Between Galaxies?
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ET Lives in a Multi-Planet Solar System
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Imagine you were spinning in space
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Extra Solar Planets: Data & Answers
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Is there anything like a cosmic mirror?
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Why do natural Moons revolve around planets?
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Gravity -- Does gravity depends on atmosphere?
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Dawn distance to Ceres ≈ distance to moon
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Earth-Sun Distance: Perfect for Life?
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Planetary motion as perpetual motion?
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Best way to see Andromeda galaxy
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Book recommendation on Binary systems
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What are the atoms floating in space
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Why if we put Saturn in water, it will float?
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Space Cold | Why No Matter Means No Heat
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Layman question on sun as seen from mercury
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Can a Camera Be Built to See Stars in Daylight?
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Tides: Does Moon's Rotation Affect Earth?
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Boundaries between the Constellations
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Solar Cycle: Current State & Update
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Questions about my stratosphere photos
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How High is Space? Astronomy Facts
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Chelyabinsk Meteor Strike: How Bright Was It?
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Battery in Space? Current Flow in Vacuum?
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Structure of galaxy and the laws behind it
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Earth as a Capacitor: Lightning & Rain
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Give Me Some Perspective: Size of Universe?
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40,000 years taken for light to reach here?
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Focal length short and long. Which to choose?
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Can a body in space form a sphere?
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Sun & Moon Coincidence: A Remarkable Fact
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Is Saturn the Night Object in Photos?
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What causes a supernova to occur?
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What would gravity be in these 2 conditions
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Why do I see stars as a point in the sky?
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Are There Many Suns in the Universe? A Debate
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Jupiter: Gas Planet? Landing Possibility & Facts
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How Do Objects Hang in Outer Space?
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Radiation on Mars: Does it Lack a Magnetosphere?
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How Often Do Blue Moons Really Occur?
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Which Variable Star Has the Longest Period?
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Doubt in a scene from the movie Gravity
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Gravitational Constant: Earth vs Other Planets
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Why is the universe considered as cold?
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Why Do Only Gas Giants Have Rings?
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Understanding the universe in real time
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Why is Alcor not considered part of Ursa Major?
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