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.
Undergrad Could Anisotropic Expansion Explain the Dark Matter Effect?
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High School Early state of Universe and the "size" of Universe
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High School Can we build a four dimensional compass?
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Undergrad How do cosmologists view loop quantum cosmology?
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High School What could explain the existence of The Great Attractor?
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Undergrad Why is the Primordial Power Spectrum Defined as P(k) = (k^3)/(2π^2)|w_k|^2?
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High School Is time dilation accounted for in calculating expantion
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High School Supervoid/Cold Spot evidence of Hawking radiation?
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Undergrad Could Space-Time Curvature Enable Time Loops?
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High School Are Primordial Black Holes the Key to Dark Matter?
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Undergrad How do inflatons and gravity interact?
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High School Unruh & Hawkins Radiation: A Comparative Analysis
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Undergrad Unraveling the Mystery of Matter-Antimatter Asymmetry in the Early Universe
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High School Is it possible to visualize the big bang?
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High School Does antimatter fit into the standard model
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High School Can entropy be measured in a singularity of infinite density?
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Insights A Poor Man's CMB Primer. Part 2: Bumps on a Blackbody - Comments
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Undergrad Can Time be Measured Absolutely w/ SNe Ia Near a Black Hole?
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Undergrad Realistic coasting cosmology from the Milne model
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Undergrad Converting Planck data for spherical projection
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Undergrad Dark Matter PBHs: Theoretical and Experimental Evidence Against Axions and WIMPs
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Undergrad Space expansion and Universe as computation
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Undergrad Is the Drake Equation a Reliable Tool for Estimating Extraterrestrial Life?
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High School Cosmic horseshoe is not the lucky beacon
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High School Is the universe expanding at an accelerating rate
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Undergrad Could we detect an intrinsic change in the flow of time?
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High School Is supersymmetry a part of string theory
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Graduate Redshift data on stars the same distance from earth
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High School Marginal evidence for cosmic acceleration
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High School Is the Cosmic Horizon the Key to Understanding Holographic Reality?
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High School Cold spot still baffles scientists
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Undergrad Accelerated expansion and Hubble plot
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High School Observational limit from the super-horizon mode spectrum
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High School Sean Carroll on Why Does Time Exist at All?
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High School Gravitationally bound system in an expanding space
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Undergrad Is BAO a standing or moving wave?
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Undergrad Understanding the curvature parameter k
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Graduate How is the red-shift of CMB obtained?
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Undergrad So we've found the missing "dark matter"?
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Undergrad How is the timing of the big bang known
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Insights Is the Universe a Black Hole? - Comments
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High School Nobel laureate perspective on the history, status and future of GR
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Undergrad Database of Galaxies and their parameters
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High School What do scientists mean by 'Nothing'?
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Undergrad No Boundary Proposal: Overview, Criticisms & Probes
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High School What was the curvature of the early universe?
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Undergrad Why does this redshift v. light travel time equation work?
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Undergrad How to Understand the Primordial Power Spectrum in TASI Lectures on Inflation?
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High School Why isn't Dark Matter involved in Weak Nuclear reactions during BBN?
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Graduate How is the duration of BBN calculated?
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High School The observed spatial distribution of matter
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High School Before Big Bang: What Surrounds the Singularity?
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Graduate Is the Universe Random or Chaotic?
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Graduate Sir Roger Penrose: Challenging Modern Physics Theories
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Undergrad CMB-S4 Science Book: First Edition | The Universe's Secrets
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High School Gravity: Is it Spacetime or Mater-Dependent?
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High School What percentage of the universe do we know
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Graduate How do quantum fluctuations become gravity wells?
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High School Entropy change during the formation and death of stars
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Undergrad Would Heat Death overcome Strong Nuclear Force?
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High School Combine a horizon line with expansion
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Undergrad Is something pulling our universe?
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High School Shapes and gravitational radiation
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High School Coordinated galactic bangs instead of big bang
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Undergrad How would dark matter aggregate?
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Graduate How do we explain universal complexities?
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Undergrad Average size of the biggest G-bound structures in the Universe
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Undergrad What would a universe look like if it had 2 time dimensions?
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High School What do you think of the "Now Hypothesis"?
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Graduate Did the LUX Dark Matter Experiment Fail to Detect Dark Matter?
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High School Graph of rotation curve of a cluster (not a galaxy)
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Graduate Motivation behind the theory of cosmological perturbations
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Graduate Quantum fluctuations in early universe
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High School What is the initial temperature of the Big Bang?
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Insights A Poor Man's CMB Primer. Part 4: Cosmic Acoustics - Comments
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Undergrad Does LQC Resolve the Information Paradox Without Complementarity?
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High School What came first, matter or energy?
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Graduate Can Time Scale Change Analogously to Spatial Expansion?
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Undergrad Scale invariance in the power spectrum
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Graduate Newtonian theory of cosmological perturbations
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Graduate Cosmological perturbations in homogeneous and isotropic spac
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High School Regression of Universe: Is Time Repeatable?
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Undergrad How does the expansion of space affect the age of the universe?
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Undergrad Intergalactic Space: Time, Radiation & Distance
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High School What is the significance of the spooky alignment among quasars?
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Graduate Gravitational Lensing: Einstein's Blue Run Mystery
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High School Are There Really Hundreds of Black Holes in NGC 6101?
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High School Why Quantum loop or string theory
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Undergrad Difference between omega 0 and omega k
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Undergrad Early opaque universe - why little proton-photon scattering?
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High School What is the next step in cosmology
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Graduate What Lies Between the CMB and the First Stars?
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Graduate Shape of the Universe: Is it Infinite or Finite?
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Undergrad Constants of nature in the early universe
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Graduate Exact solutions of quintessence models of dark energy
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High School Can the space (or else measurable) be actually infinite?
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High School What cancel the quantum contributions in Cosmological Const?
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High School What is beyond the edge of the universe?
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High School The universe is shrunk a little bit more than we thought
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Undergrad View of a Void: Intergalactic Space & Dark Energy
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