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 Could Quantum Mechanics Explain a Super Heavy Universe?
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Graduate How the shape of the universe affects density
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Graduate The phase transition of the universe during inflation
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Graduate Cosmological expansion of earth orbit
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Graduate Questions about (potential) variations in the Fine Structure Constant
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Graduate Is the Universe Really Expanding or Are We Just Moving Faster?
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Graduate Did the universe have a beginning?
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Graduate Another nail in the MOND coffin?
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Undergrad Universe expansion is slowing down
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Graduate A flat-torus as the geometry of space-time
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Graduate Is Infinite Inflation Possible After the Big Bang?
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Graduate Using the CMB to verify the universe is flat
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Undergrad Againwhat is a vaccum made of?
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Graduate FRW Derivation History: Acker's Questions Answered
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Graduate What is the significance of a universe emerging from nothing?
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Graduate Is this possible? (regarding observable and actual size of universe)
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Graduate Re: CMB Redshift Question (Visible Wavelengths)
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Graduate Dark Matter on Trial: Serious Blow to Theories?
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Graduate Proportion of energy compared to mass in universe
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Is Nothing Still Considered Something?
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Graduate How do we infer a closed universe from FLRW metric?
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Graduate How to find scale factor at recombination?
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High School What If the Big Bang Was Caused by Another Universe?
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Undergrad Is the Universe Flat or Curved?
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Graduate Linear model uniquely implies a boundary to our Universe?
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High School How do we move around the sun?
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Graduate Where Does Gravity Originate From and Why Is It So Weak?
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Graduate What proof do we have that TIME exists?
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Graduate Could Multiple Big Bangs and Dark Energy Explain the Expanding Universe?
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Graduate CMB Peak Fregenucy (Planck's law vs. Wein's law)
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Undergrad Infinite monkey theorem - question(s)
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Graduate Do theories of quantum gravity require that space-time is a lattice?
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Graduate How to calculate CBR lambda vs age of universe?
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Graduate Was energy already quantized 10^-43 seconds after the Big Bang?
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Undergrad Relationship between expanding universe and time
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Graduate Could Anti-Dark Energy and Matter Exist in the Universe?
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Graduate Geometry of Inflationary Universe?
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High School Write a Speech: "Time Waits for No One" & Cosmology
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Graduate Calculating the direction of the center of the universe?
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Graduate The Role of Inflation in the Expansion of the Universe
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Graduate Can we extend our inertial frame globally?
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Graduate Size of the Universe just after Big Bang
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Undergrad How did elements and building blocks of life arrive on Earth?
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Graduate Will space always expand when the space has vacuum energy and zero mass?
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Graduate Why such strange units of measure?
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Graduate Cosmological redshift alternative explanation?
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Graduate Big Bang vs Big Crunch: Universe w/No End
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Graduate What Insights Does the Fourth Dimension Offer About Our Universe?
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Graduate Why does the expansion of space in a uniform universe only push outward?
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Graduate Origins of Scale Factor of FRW Metric and Misc Questions of GR Equations
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Undergrad Elements on Earth: Supernova & Planets
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Graduate Is gravity 'weak' because it leaks into higher dimensions?
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Undergrad Is There a Center to the Expanding Universe? And How Does Light Factor In?
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Graduate Shouldn't we see faster expansion without dark energy
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Graduate Slightly Modified Olbers Paradox Question
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Graduate Varying Fine Structure Constant and Vacuum Energy Density
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Graduate Did quantum degeneracy pressure drive inflation?
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Graduate How does the Big Bang Theory explain the creation of matter from energy?
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Graduate Are the Three Dimensions of Our Universe Independent?
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High School Can Star Positions Be Accurately Predicted?
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Graduate Role of triatomic H ion (H3+) in early star formation
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Graduate Which fraction of the observed CMBR signal is due to some foreground contaminant
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Graduate Spatial and temporal variation of alpha?
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High School Does Light Really Stop and Turn Back When Reflected?
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Undergrad How is the big bang related to the general theory of relativity?
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Graduate Can We Adjust Natural Constants to Obtain Stable Atoms in Other 'Multiverses'?
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Graduate Can Baryon Acoustic Oscillation Accurately Measure the Universe's Expansion?
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Graduate The 'nothingness' of the vacuum.
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Graduate Obstacles to observing the cosmic neutrino background
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Graduate Does not receeding of galaxies decrease entropy
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Graduate Is our universe a geodesically complete manifold?
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Graduate What is the issue with the concept of a center in the expanding universe?
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Undergrad Universe Expansion: Why Isn't Space Between Atoms Expanding?
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Graduate What can spectroscopy of this distant galaxy reveal about the universe at z~10?
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Undergrad Can Stars Become Black Holes Without Going Supernova?
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Graduate Particle creation in an accelerating Universe?
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Graduate What is the physical significance of the WMAP power spectrum?
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Graduate Newtonian cosmology vs relativistic cosmology
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Undergrad Energy of photons and the red shift
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Graduate I have some somewhat detailed questions about inflation, curvature, and entropy
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Graduate What Lies Beyond the Expanding Universe?
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Graduate How Do We Distinguish Red Shift Changes Over Time in Distant Objects?
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Graduate Does the Universe have a Boundary ?
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Graduate What about gravity's relativity?
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Graduate Where is the center of the universe?
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Graduate Is the total energy of each particle constant in an expanding universe?
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Graduate What Caused the Flaw in the Singularity that Triggered the Big Bang?
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Graduate Could Neutrinos Be the Key to Understanding Dark Matter?
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Graduate The Cyclic Model: Multidimenstional Membranes? Where do these come from?
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Graduate Antineutrinos? Is this a plausible theory?
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Graduate Mechanism for matter creation in an expanding Universe?
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Undergrad Biggest Physics Discoveries 1980-2012
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Graduate Cosmologists: why the acceptance of any weird theory but god?
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Graduate Looking for an introduction to eternal inflation
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Graduate The Impact of Multiple Universes on Big Bangs
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Undergrad What is our perpective, where did it start, and why can we see it?
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Undergrad Is the Universe Finite or Infinite in Space?
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Graduate Half Closed Universe: Is It Finite?
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Graduate How do we account for all the elements in the Universe?
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Graduate Rate of universe expansion question
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