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 What are the implications of a perfectly flat universe?
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Graduate Why Is the Universe Comprehensible?
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Graduate How many baryons are there in the universe?
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Graduate Galaxy Clusters & Superclusters: Definition or Ad-Hoc?
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Graduate What substance fills the universe?
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Graduate Can the universe itself develop awareness or even omniscience?
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  • Poll Poll
Graduate New Theory of Gravity: Is it Possible?
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Graduate GE - GMm/R: Does Vacuum Energy Affect Gravitational Fall?
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Graduate Misconceptions re: Cosmological Redshift
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Undergrad How can the universe be big enough to fit all the stars when it's not that old?
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Graduate Human observer & cosmological interpretations
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Graduate Cosmic time and a cosmic location.
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Undergrad Can things exist/develope without gravity?
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Graduate How Can Newcomers Understand Hubble's Law and Cosmology Basics?
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Graduate Time & Black Holes: Creative Perspective on Creation
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Undergrad Redshift: Is the Universe Slowing or Accelerating?
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Graduate Where can I get C14 data for cellulosic material?
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Graduate Why Do Graphs of the Cosmic Microwave Background Show a Peak at 2mm, Not 1mm?
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Graduate Assumption of spherical nature of the universe
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Graduate The Edge of the Physical Universe
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Graduate If space is expanding (moving) then does relativity change?
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Undergrad Nature of Universe: Latest Thinking Explored
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Undergrad Universe Acceleration: When Did it Begin?
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High School What movies the particles of light?
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Graduate What Are the Implications of the New Riess Hubble Rate?
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Graduate Can mathematical beauty lead to a better understanding of physical laws?
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Graduate Reliability of physics as an exact description of the universe
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Undergrad Can Gravity Really Slow Down the Expansion of the Universe?
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Graduate Can Randomly Generated Brains Hold the Secrets of the Universe?
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Graduate Value of Hubble Parameter in Decelerating Universe
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Undergrad Hypernova release two huge jets of gamma rays
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Graduate Cosmic Microwave Background - why do we see photons from 13 billion years ago?
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Graduate Small Flat Universe? How is it Possible?
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Graduate Extra Dimensions: What Caused Compactification?
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Graduate How does the curvature of the universe evolve in cyclic models?
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Graduate What is the Relationship Between Track Growth and Universe Expansion?
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Graduate What exactly is cosmological inflation?
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Undergrad Convert km/s to kpc/Gyr: 0.964275 Factor?
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Undergrad Why Universe Expansion Doesn't Affect Solar System
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Graduate Could the Universe Have Been Swimable During Inflation?
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Undergrad Heart shaped observable universe?
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Graduate How is density calcuated from WMAP data
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Graduate Is the rate at which the universe expanding increasing?
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Undergrad Universe expanding +c. +c impossible?
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Undergrad From Big Bang to Iron: A Timeline of Creation
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Graduate Could Extra Dimensions in String Theory Be Larger Than Our Own?
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Graduate How is Dipole Anisotropy Expansion Derived in Weinberg's Cosmology?
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Where does word universe originate from?
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Graduate No need for dark energy , gravity will suffice.
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Graduate How seriously do you take the FLRW model?
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Graduate Wanted to find out some things about the universe
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Graduate Can Black Holes Create Interdimensional Bridges to Other Universes?
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Graduate Chaotic Inflation Models & Equations
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Graduate 2 Q's - hawking radiation and inflationary universe
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Graduate What causes the research interest in cosmology?
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Undergrad Universe Energy: Where Does It Come From?
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Graduate Finite universe and inflation theory
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Graduate What is the initial force of universe expansion?
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Graduate Universe expanding faster than light
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Graduate Scaling Cosmologies: Solving the Coincidence Problem
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Undergrad A beginner's question re: size of universe
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Graduate Raisin pudding or balloon at LHC
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Graduate Wolfgang Rindler: Godel's Remarkable Excursion into Cosmology
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Graduate Inflation: Why all the 10^27s everywhere?
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Graduate Can We Really Observe White Holes, or Do They Only Exist Mathematically?
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Graduate Fundamental parameter probabilities
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Graduate Inflationary Models: A Dead End?
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The universe 700 trillion light years away.
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Graduate Matter and Antimatter: Why Did Matter Dominate?
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Graduate Is the Hubble Age Estimate Really Accurate?
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Graduate Scale of inflation and dark energy
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Graduate Alternate universe attractive/repeling force?
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Undergrad What Do You Need to Know About Star Clustering Research?
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Graduate What Are the Implications of Ignoring Pre-Big Bang Events?
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Graduate Evidence for dark energy equation of state paramater w = -1
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Graduate Size of the *observable* universe (noob questions about)
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Undergrad Galaxies receeding at and above speed of light
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Graduate Derivation of (linearized) perturbation equations
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Challenging Claims of Proof for Evolution: The Scientific Perspective
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Episode of The Universe (WMAP)
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Undergrad How Did Planets Enter Their Orbits?
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Graduate I don't like Dark Matter and Dark Energy
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Graduate How is the Proton to Neutron Ratio Calculated After the Big Bang?
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Graduate Slowing time or expanding space?
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Graduate Evaluating distance of far objects in space
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Undergrad The origins of universe and development
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Graduate A question about Friedmann Equations
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Graduate Do the cosmological expansion affect binding systems
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Graduate Misconceptions about expanding space
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Undergrad CAMB Output File: TT Power Spectrum (C_l) Columns
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Graduate How can we accurately determine the expansion rate of the Universe?
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Graduate Can a 3-Space Be Isotropic About Two Distinct Points Without Being Homogeneous?
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Graduate How Many Elements Formed from Primal Plasma?
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Graduate Explanation on how inflation solves the horizon and flatness problem
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Graduate Why are the primordial fluctuations called scale invariant?
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Graduate lowest scatter Hubble diagrams ever published (Bailey et al)
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Graduate Is DNA Production a Constant in the Life Cycle of the Universe?
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Graduate Do Galaxies and the CMB Share the Same Reference Frame?
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Undergrad Dimensions vs Universes: Understanding the Distinction and Connection
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Undergrad The Odds of Life in the Universe - What Are Your Thoughts?
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