Cosmology Forum

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Join in expert discussion on topics revolving around cosmology. Cosmology is the origin, evolution, structure and eventual fate of the universe.
Graduate Roger Penrose's Crazy Idea on the Big Bang
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Graduate How does the universe move beyond PI?
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Undergrad Question: Normalforce (in the universe)?
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Graduate Escape from a black hole with another black hole?
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Graduate Quantum Jitter and 120 Magnitude Prediction
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Graduate Planck Mission and M-Theory Cosmology
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Graduate CMB Radiation from Big Bang? Why not dark energy?
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Graduate The Incredible Advances in Cosmology of the Last Decade
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Undergrad Question about recent NASA artical
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Undergrad Need Help Finding Information for Article
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Undergrad Universe Expansion: What Force Triggered the Big Bang?
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Undergrad What Was the Initial Size of the Big Bang?
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Graduate Question about theory of expanding universe
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Undergrad Expansion of the Universe: Is There a Way to Tell?
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Graduate A question for people smarter than myself 8)
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Graduate Relativistic Mass and high relative Velocity of distant galaxies
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Graduate Program for Supernova Data Fitting
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Graduate Does expansion of spacetime also stretch amplitude of light waves?
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Graduate Does the Universe Have an Edge or Boundary?
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Graduate Phase-Space volume V - Roger Penrose
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Graduate Do redshifts really indicate expansion of the universe?
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Graduate My conversion with someone regarding cosmology, conclusion included
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Graduate 12 year old savant provides possible debunking of Big Bang theory.
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Graduate The Big Bang Theory: Was There No Space?
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Graduate Static spacetime as static universe
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Undergrad Queston about the darkness of the universe
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Graduate Do the conditions created by the LHC accurartely simulate the big bang?
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High School Is Cosmology the Same as Cosmic Rays?
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Graduate Is Dimensionality Frame-Dependent in Spacetime Theories?
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Graduate Galaxies travelling away from each other faster than light
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Graduate Planck CMB map - what to expect?
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Graduate Will CMB ever stop being detected on Earth
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Graduate Thermal statistics in the hot universe
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Undergrad Order and harmony vs disorder and chaos.
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M Sunday Morning Thought: Could the Universe Be Rotating?
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Graduate Universe - bubbles of Dark Matter?
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Graduate Exploring the Lambda Constant and the Big Bang Theory
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Graduate The Grand Speculation - Investigating Hawking's Theory
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Graduate Is Energy Truly Conserved in an Expanding Universe?
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Graduate Variable light speed and speical relativity
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Graduate Questions About Time Before the Big Bang
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Graduate Does the Big Bang Theory Contradict the First Law of Thermodynamics?
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Graduate How did the big bang ever stop being a black hole?
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Graduate Puzzle of scalar dynamic in the early universe
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Graduate What is the meaning of expansion in Loop Quantum Cosmology?
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Graduate Measuring Distances Across Billions of Light Years
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Graduate Dark Energy Theory Gets Boost From New Measurements
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Graduate Getting the hubble constant from time delay in a gravitational lens
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1st law of thermodynamics & a theist
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Graduate Initial state of the Universe (order or chaos)
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Graduate Looking for defunct papers/theories
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Graduate Why Is There More Matter Than Antimatter in the Universe?
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Graduate What Energy Sources Could Sustain a Refuge in an Expanding Universe?
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Undergrad What happens to entropy in a cyclical universe?
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Graduate Could All Matter Be Curved Space Itself?
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Undergrad Could the Big Bang really have happened in an instant?
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Undergrad Is space made up of individual units?
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Graduate Can a Maximally Rotating Black Hole be Defined by the Kerr Metric?
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Undergrad What is the connection between antimatter and dark matter?
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Graduate Cyclic Universe, Big Rip version
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Graduate What is the critical density of the Universe using hubble's constant?
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Graduate How is Hubble's equations H(t) = 2/3 t^-1 derived?
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Undergrad Can galaxies separate at speeds faster than the speed of light?
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Graduate What is the definition of adiabatic CMb spectrum in simple inflationary models?
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Graduate Are Event Horizons Different for Quantum and Supermassive Black Holes?
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Graduate Doesn't the big bang model rule out an infinite universe?
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Graduate All forces neuralized at big bang, & space expansion
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Undergrad Universe Expansion: Is a Big Crunch Imminent?
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Graduate CMB Power spectrum/CMB anisotropies -> Geometry of Universe
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Graduate Maximum value of Hubble parameter (near start of expansion)
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Graduate How is the observed redshift caused by a recessional velocity?
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Graduate Hawking radiation from a black hole?
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Graduate Can Naked Singularities Exist Through Scalar Field and Gravitational Collapse?
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Graduate Expansion of Universe, do we know the equation?
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Graduate What Was the Ratio of Quarks to Antiquarks in the Early Universe?
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Graduate Calculating travel times on cosmological scales
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Undergrad What Is Dark Matter and How Do We Know It Exists?
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Graduate How Does Matter Leave a White Hole?
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Graduate Initial value for hubble parameter
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Graduate Mini-Black Holes and Stars Winking Out
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Undergrad Do Universes Expand Because There's Nothing to Stop Them?
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Undergrad Is the Red Shift Evidence of an Expanding Universe or an Illusion?
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Graduate Calculating Luminosity Distances: Converting Angular Distances to Parsecs
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Graduate How Can We Analyze the Singularity at the Big Bang?
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Undergrad Redshift: expanding space-time or galaxy moving away form each other?
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Undergrad What Would Happen if Our Sun Became a Pulsar?
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Graduate How Can the Universe Be 13.7 Billion Years Old but 46 Billion Light Years Wide?
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Undergrad Is the Big Bang Real? Evidence & Facts Explained
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Graduate The matter content in the universe when the last scattering happens
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Undergrad Einstein's Universe: How Relativity Shaped His Understanding
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Graduate Is the behavior of dark matter contradictory to the formation of black holes?
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Graduate How Does Redshift and Lambda-CDM Model Explain the Universe's Expansion?
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Graduate How to Create and Contain a Black Hole in Fiction
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Graduate Red Tilt in CMB | Explaining Inflation & Measurement
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Undergrad What made Einstein think the universe was steady?
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Undergrad Who was the first one to say universe is expanding?
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Undergrad Why does redshift indicate that space-time is expanding
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Graduate Why is an infinitely small point required for the big bang?
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Undergrad Time of last scattering - what was it like
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Graduate Exploring the Prime Mover: Philosophy vs Physics
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