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 Closest mass to the line of sight
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Graduate Is the Boltzmann Brains Problem a Challenge for Eternal Inflation Cosmology?
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Graduate Can Black Holes Be Utilized for Practical Purposes?
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Graduate Acceleration a Function of Density, yet Density is Constant?
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Graduate Why "Dark Energy density" instead of CC?
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Graduate Is the Universe Still Expanding Faster Than the Speed of Light?
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Graduate What is the Universe expanding into?
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Graduate What is the key equation for distance growth in Kindercosmos?
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Graduate Gravitational Effect of Electromagnetic Radiation
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Graduate Is the "Big Bang Theory" is on it's last breath?
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Graduate Distribution of energy after matter/antimatter annihilation
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Undergrad Can Magnets Bend Space-Time and Enable Time Travel?
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Graduate Shape of Universe - What would a very long stick do
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Graduate Calibration cosmic distance scale on age globular clusters
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Graduate Gravitational Waves and the Expansion of the Universe: Redshift or Not?
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Graduate Density Perturbations: Relation to c/H & Scale Invariance
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High School C: "The Big Bang Machine" on Nova: A Critique
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Graduate Quantum equations suggest the big bang never happened
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Undergrad Terminology in structure generating
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Graduate Variance and 2 point function in perturbation theory
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Undergrad Is Cosmology a Branch of Physics or Astronomy?
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Graduate What are the important numbers in Cosmology?
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Graduate Does Gravitational Lensing Cause Red Shift in Light?
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Undergrad Dark Matter Black Holes: Is it Possible?
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Graduate Is Universal Expansion Perceptible to Observers?
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Graduate 3 fates of universe holds for which cosmological fluids?
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Graduate Why Is the Accelerated Friedmann Equation Giving Incorrect Signs?
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Graduate Why did dark energy overcome dark matter to create the expanding Universe?
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Graduate Would the Big Rip make time stop?
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High School Does the amount of matter in the universe stay at a constant amount?
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Graduate Analyzing Planck Data for No-Scale Supergravity Inflation
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Graduate Using atomic clocks for gravitational wave detection
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Graduate Can Galaxy Lensing Confirm Dark Matter's Presence?
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Graduate In what way is "dark energy" more than "none of the above"?
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Graduate Simulating dark matter by assuming stable solution
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Undergrad Unpacking the Big Bang: Understanding the Rapid Expansion of Space
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Graduate Why do people think the universe is finite?
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Graduate Planckoscope- Visualizing Planck Data
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Graduate Universe Expansion: Why Objects Move Away Faster The Farther We Look
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Graduate Dark Energy: Does Mass Loss Explain Acceleration?
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Graduate What Is the Connection Between Black Hole Entropy and the Holographic Principle?
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Graduate Questions Concerning The Planck Epoch
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Graduate Type Ia Supernova not Standard Candles? I'm confused .
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Graduate Constraints on Inflation (Planck 2015 results XX)
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Graduate Is Phi Squared Inflation Compatible with Latest Planck Data?
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R.I.P. Dr. Val Fitch, 91. Nobel lauriate cosmologist
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Graduate Why did Dark Matter have less of an Impact on the Universe
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Graduate Klein Gordon Equation in Quintessence Models
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Undergrad If the energy or matter can't be created nor destroyed,does
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Graduate Boundary for an Infinite "Open" Space
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Graduate Is the Diffuse Microwave Energy from Galaxies Contributing to CMB Measurements?
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Graduate Can Quantum Mechanics Explain the Expansion and Contraction of Space-Time?
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What topics are covered in the University of Arizona's Cosmology Video Lectures?
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Graduate How to measure curvature of 3-sphere from inside its surface
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Graduate Is all the space there is here now or is space being created
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Graduate You think there's a multiverse? Get real
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Graduate What Fundamental Force Played a Key Role in the Big Bang?
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Graduate How Does the CMB Power Spectrum Relate to Angular Scales?
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Graduate Was the announcement that BICEP2 has detected Inflation Gravity Waves premature?
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Undergrad Is the Big Bang Theory Just a Pseudo-Issue?
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Graduate Is Nature Symmetric? A Deeper Look
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Graduate Is my reasoning correct? Energy "before" the big bang?
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Undergrad Scenarios for end of the universe
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Graduate Why was the flat, no Lambda Universe previously favoured?
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Graduate CMB dipole anisotropies- we are moving towards cmb?
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Graduate Assumptions in dark-energy density parameter measurement
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Graduate Natural Spectrum of the Universe?
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Graduate First cosmology computer simulations
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Graduate Expansion of the Universe Question
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Graduate What Makes the Present Moment Special in an Expanding Universe?
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Graduate Is Space-Time Curvature Just a Force Field?
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Graduate Event Horizon in a closed, matter (dust) dominated universe
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Graduate Pre big bang infinite cold inflation?
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Graduate Thermalized components/virialized
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Graduate Most total e-folds from inflation
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Graduate CMB Hemisphere of Evil: Planck Asymmetry Examined
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Graduate So what is your favourite theory for the beginning of the universe
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Graduate How massive do neutrinos need to be to account for all dark matter?
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Graduate Integrated Sachs Wolfe Effect - redshifting?
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Undergrad How did "Visible light" come into existence?
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Graduate Is Dark Energy a Myth?
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Graduate Question about the Penrose process
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Graduate Is it possible to understand inflation through Einstein?
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Graduate Understand CMB Anisotropies & Interpret Figures
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Graduate CMB dipole anisotropies & Hubble's Law
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Undergrad Floating in space and angles of galaxies
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Graduate Anti-matter annihilation and the CMBR
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Graduate Size of the Observable universe at the Big Bang Singularity
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Graduate I Simply Cannot Understand Olbers' Paradox -- Finite/Infinite Universe
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Graduate Is Time Quantized? | Scientific American
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Graduate How Does Motion Influence Wave Frequency in Doppler Shift?
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Graduate Are Dark Matter Oscillations Possible Like Atomic Vibrations?
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Graduate Velocity of receding galaxies. Hubble <-> scale factor
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Graduate Why is there an observable universe?
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Graduate Why does the h tensor represent gravity waves?
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Graduate Density perturbations made simple
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Graduate How much matter goes into making black holes?
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Graduate Question on Smolin's theory on Black Holes and new Universes
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Graduate Massive galaxy cluster could upend theory of universe evolut
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Graduate Infinite Universes: Imagining Life Forms & Math Limits
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