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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Size of the Universe Speech Help
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Origin of Radio Waves: An Explanation
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Why is a Comet More Dangerous Than an Asteroid?
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Hexagon on Saturn: NASA Investigates
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Does blackhole have strong magnetic field?
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What is at the center of the universe?
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Quick (Most likely simple) Question
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Bertrand Russell's Paradox: Certainty or Doubt?
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Anyone own a Celestron 11'' schmidt cassegrain?
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End of the Universe: Light is the Final Frontier
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Can Aliens See Events from the Past?
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Questions out of curiosity… Enlighten me please
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How is a Comet Defined?
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Formation of the Moon: A Vibrating History
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No big planets close to the Sun?
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Really Simple Circumference Question
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Round trip to earth in a straight line?
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Sun's Polar Shift on 2012 coincidence?
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Star Density Should be a piece of cake
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Birght comets like Comet McNaught
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How Long Does It Take To Orbit Our Galaxy
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The Sun Exploding: Effects on Earth
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Season Indicators: Know When Seasons Start & End
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Coordinate conversion calculator
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Just a little question on orbits.
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Converting parsecs to Mega-parsecs
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Align Earth, Sun & Milky Way: Date Revealed
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No storm on Earth lasts like the one on Jupiter
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A question related to solar system
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The sun's gravitational pull on the earth
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Varibles/Eclipsing Binary systems
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Does a Geo-Synchronous Satellite Catch a Shadow?
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What Is Galactic Motion and How Is It Explained?
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Earth's Celestial Poles: North and South
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What Defines a Planet?
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Do All Planets Have Moons and How Did They Form?
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Why Is Pluto No Longer Considered a Planet?
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Earth, Sun & Galaxies: Physics of Movement
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Mars Closest Encounter With Earth
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Stars Burning in Space: Unanswered Questions
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Only earth orbits in a circular motion?
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What Truly Defines a Vacuum?
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What is the red circle near the moon phenomenon?
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Galaxy Splitting: Has it Ever Occurred?
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Are Stars Really Formed by Black Holes?
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South Delta Aquarid or Perseids?
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What is the density of the Sun's surface?
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Reversal of Venus: Mystery of the Solar System
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Solar and Lunar exposure tables information
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Does the Moon's Orbit Stay the Same?
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Extra-Galactic Stars: Are There Any?
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Why Won't Earth Fall into the Sun?
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Is there white hole in the universe?
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Why do Neutron Stars have a Magnetic Field?
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Stoping the desturaction of the sun?
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Earth's Rotation: Day & Year Cycles
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