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 Rate of Supernovae in the Milky Way Galaxy: Scientists' Best Estimate
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High School Is the concept of true distance compatible with relativity?
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High School What is the reason for galaxies fading in the distant future?
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High School What Is the Nature of Space and Its Infinite Possibilities?
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High School Universe is accelerating expanding
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High School Could Dark Matter be Time itself?
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High School How do we know we are not inside a blackhole?
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High School Data on time for fading of galaxy?
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Graduate The equation of state of non-relativistic energy
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High School Dipole pattern for Fine Structure Constant?
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Graduate Life forms that live in decreasing entropy phase of universe
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Undergrad Why physicist who discovered things in gravity are the most famous ones ?
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High School Predicting the future of a deterministic universe
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Graduate What is the significance of peculiar motion in galactic rotation data analysis?
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High School Expansion of space and momentums of galaxies
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Graduate Theories and questions on the expansion of the universe
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Undergrad Vacuum energy density after inflation
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Undergrad Is the BB Paradox Compatible with an Infinite Expanding Universe?
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High School Will the Universe Eventually Go Dark?
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High School Question about the nature of Gravitation
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Undergrad What is the History of Dark Matter?
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High School Why is the redshift not the result of something else
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Undergrad Is Information Conserved in the Universe?
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Undergrad Is Probability Meaningless in an Infinite Universe?
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High School Super-luminous Sphere Fading: Will Smaller or Larger Spheres Fade Away First?
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Undergrad Physics in a universe with instant communication
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Undergrad Expansion of the universe, a poor choice of words?
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High School Does Time Reverse Inside a Black Hole's Event Horizon?
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Undergrad How Does Dark Matter Density Affect Galactic Rotation?
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Undergrad Horizon Riddle (Infinite Horizon Problem)
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Graduate The Big Rip - new evidence for it?
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High School At what point would we stop seeing a star?
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Undergrad Does positive curvature disprove eternal inflation?
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Graduate How do we say that the universe we live is 3 dimensional?
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High School How to apply Einstein's STOR to expansion
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Undergrad Size of Universe: Exploring 13.7bn Years of Space
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Graduate Rotational universe without dark energy and dark matter?
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High School Is the Universe a Type of Fluid?
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High School Expanding from and eventually to a singularity?
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Undergrad Plotting number of halos per logarithmic bin
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High School Hubble equation function of time
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Undergrad Spacetime expansion and conservation of energy
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Undergrad Experiment to Determine if Spacetime is Granular
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Undergrad Inflation assumes ##\ddot{a}<0## after inflation?
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Tyson Says It's 'Very Likely' The Universe Is a Simulation
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Undergrad Spatial homogeneity and the functional form of two-point functions
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Undergrad Understanding Wiki's Milky Way Galaxy rotation chart
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Undergrad What differentiates inflationary models from each other?
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High School Is expansion caused by unknown tension in space/time?
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Graduate Uncovering the Mysteries of Dark Matter's Energy Content
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Undergrad Calculation of mean energy value of photons in recombination
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Undergrad Exponential expansion of inflation
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Undergrad Is the influence of dark matter symmetric?
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Undergrad Flat vs Open Universe: CMBR & Type Ia Supernovae
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Undergrad How Do We Measure the First Second of the Universe?
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High School Voyager 1 - image of 'Pale Blue Dot'
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High School How do physicist determine the energy of the universe?
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Graduate Do White Holes Violate 2nd Law of Thermodynamics?
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Undergrad CMB Education Tool - Adjust Contrasts & Visualize Effects
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High School Have we observed antimatter in the early universe?
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Undergrad How can the universe be infinitely big?
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High School Could dark energy just be caused by virtual particles
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Undergrad What Are the Proposed Alternatives to the Multiverse Theory?
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Undergrad The observable Universe and its shape
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Undergrad Is There a Preferred Axis in Cosmology and What Could Be Its Origin?
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High School Is Dark Energy Really Driving the Expansion of the Universe?
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High School Geometries of the Universe: What are the Most Accepted Models?
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Undergrad Could pulsar timing arrays see primordial gravity waves?
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Undergrad Deriving Equation of Motion for Quintessence Scalar Field?
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Graduate Tension between local and CMB measurements of Hubble constant
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Graduate Explore Binary System Inspiral w/ 1.5 Solar Masses
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Graduate In LIGO’s pulse, how much comes from BH merging/ inspiraling
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Undergrad Will a Slow Decrease in Dark Energy Density Alter the Fate of the Universe?
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Undergrad Axis of Evil": Power Asymmetry in the Universe
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High School What is causing the accelerated expansion of the universe?
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High School Does the Formation of Positive and Negative Mass Occur Throughout the Universe?
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Undergrad Understanding dark energy problem
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Graduate Could an entropic force help explain size of the cosmological constant?
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High School What are the limitations of the heuristic picture of Hawking radiation?
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High School Is it possible for "nothing" to exist
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Undergrad Time Space Fabric: Malleability & Extension Explored
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Insights A Brief on the Expansion of the Universe - Comments
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High School Could Another Big Bang Happen in My Hand?
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High School E=mc^2 & Universe Expansion - Answers Wanted!
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Undergrad Virtual Particles: Inflation vs Present Universe
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High School Entropy is greater in galaxies or pre atomic era
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Graduate What percentage of the universe's mass is contributed by neutrinos?
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Undergrad Cosmic Microwave Background Radiation Anisotropies
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High School Could Supermassive Black Holes Be More Common Than We Thought?
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High School Questions regarding pre Big Bang
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Graduate What's the truth behind CCC's concentric circles prediction for the CMB?
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High School Continuous or discrete acceleration?
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High School Can Light Ever Stand Still in the Universe?
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High School Big Bang versus No Beginning and No End.... What is the lates
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Graduate Instability of Cosmology with Quantum Corrections
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Graduate Where to find galaxy mass function observational data?
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High School Is There a Global Database for Public Domain Scientific Knowledge?
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Undergrad VR/AR big bang model (Virtual Reality Simulation)
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High School What Are the Latest Insights on CMB Anomalies from Ali Frolop and Douglas Scott?
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High School Why does light not have infinite mass?
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