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 Space Expansion: Is Gravity the Cause?
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Graduate Why does power spectrum is calculated at the radiation/matter epochs?
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High School Why do astronauts describe the smell of space as strong, metallic, and unique?
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Graduate How Does the Big Bang Theory Address Apparent Violations of Established Physics?
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Graduate Is the Universe Fine-Tuned for Androids?
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Undergrad Why Can't We See a Parallel Universe?
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Graduate How Do Gravitational Waves Impact a Solid Sphere of Mass?
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Graduate The Hubble Constant and Natural Unit
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Graduate Dark Energy & QCD: Federico Urban & Ariel Zhitnitsky's Solution?
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Graduate Does flat Universe have a center?
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Water on the Moon: NASA and ISRO Team Up to Confirm H20 Existence
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Graduate Difference between Dark Energy and Cosmological Constant
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Graduate Black hole merger - what would happen if
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Undergrad Is Time Synchronous Throughout the Universe?
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Graduate Cosmology: Milky Way Formation in a Month?
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Graduate The Mechanism of the Cosmological Redshift
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Graduate History and geometry of flat universe
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Graduate What are the preliminary results from the Planck First Light Survey?
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Graduate Offshoot from 'Theoretically how far can one see in the universe'
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Graduate Can math truly describe our universe and it's phsical being?
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Graduate Chaotic Eternal Inflation vs. False Vacuum Eternal Inflation
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Undergrad What is the most massive galaxy cluster in the universe?
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Graduate More Hawking radiation misinformation
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Graduate Is the Idea of the Big Bang as the Beginning of the Universe Outdated?
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Graduate String theory and gravitational waves imprint on microwave background
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Graduate How does cosmic microwave radiation lose energy?
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Graduate A challenge to the symmetry of laws of physics
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Graduate In currently understood physics, does the universe have a centre?
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Undergrad A little thought of before the Big Bang
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Undergrad Question about distant galaxies
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Graduate Expansion around gravitational clusters
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Graduate CMB fluctuations and large scale fluctuations nowadays do not match ?
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Undergrad Can Black Holes Be Used for Space Travel and How Do They Compare to Wormholes?
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Graduate Mass of BH & Host Galaxy: A Deeper Look
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High School About how far are we now from where we were one year ago?
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Graduate Absolute velocity, CMB, and doppler shift
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Graduate Life, the universe and everything
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Graduate Speed of light effected by expansion of space?
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Undergrad Doppler effect and expanding universe
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Graduate What is a cosmic red-out and how does it relate to the collision of galaxies?
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Graduate Accelerated expansion without Dark Energy?
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High School Is the 2006 edition of The Elegant Universe DVD worth the extra features?
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Cosmic Darwinism - Definition & Overview
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Graduate Hawking Radiation: Theory & Evidence Behind Black Hole Emission
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Graduate The Production and Behavior of Dark Matter Neutrinos
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Graduate Could Parallel Universes Really Collide?
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Graduate Is there good evidence we live in Block Universe?
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Graduate Is Dark Energy Really Constant? New Evidence from Multiple Surveys
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Graduate What Lies Beyond the Edge of the Universe?
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Graduate How do you create the big bang inside metamaterials?
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Undergrad Galaxy Recession: Explaining Hubble's Law
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Undergrad Choices in Multiverse: Do People Differ?
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Graduate Does the conservation law prove that energy is eternal?
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Graduate Before the Big Bang now a topic for wider audience
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Graduate Understand Bubble Nucleation in Phase Transition - Analogy/Figuration
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Graduate Is the Cyclic Model of the Universe a Viable Alternative to the Big Bang Theory?
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High School Does Space Move? Answers to Your Questions
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Graduate How Do You Calculate the Weight of a Black Hole?
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Graduate The Curvature of Space: Understanding the Flatness of the Universe
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Graduate Accelerating expansion of the universe.
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Graduate Amplitude of velocity perturbations at last scattering
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What Triggered the Big Bang According to 'The Universe' on History Channel?
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Question about Expansion and the Center of the Universe
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Graduate Cosmic Darwinism featured in new view of the universe
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Graduate The Relationship Between Distance and Brightness in Cosmology
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Graduate The singularity moment at the beginning of the universe
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Graduate Model Universe: Calculating Gravitational Info Rate
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Graduate CMB Flux Density: Deriving For Present Cosmology
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Graduate Red Shift - From Dark Material Or Recession?
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High School Why are the distant stars so far apart?
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Graduate How does the expansion of the universe affect redshift?
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Graduate What Could Cause a Big Crunch in the Expansion of the Universe?
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Graduate Could Minor Density Variations in the Universe Solve the Flatness Problem?
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Undergrad Redshift of Far Galaxies: What Causes It?
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Graduate Is the Higgs field the substance that fills the universe?
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Undergrad Hopefully not too stupid question about gravitational waves
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Graduate A question about the flatness of the universe.
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High School Please answer a layman's questions about the Big Bang
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Graduate Was there a 'birth of gravity'?
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Graduate How Does Gravity Influence the Big Crunch Hypothesis?
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Graduate Red shift distance relationship and dark energy
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Graduate Interpreting Negative Dark Energy Density in the Expanding Universe
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Graduate Detect the cosmic neutrino background
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Graduate Observable Universe vs. HyperUniverse
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Graduate Source for the margin of error of curvature
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Graduate Low entropy in extreme tempertures?
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Graduate Unraveling the Mystery of Boltzmann Brains & Landscapes
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Graduate Why Didn't the Universe Collapse Back to Singularity After the Big Bang?
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Graduate Equivalence of the 'expanding space' & 'kinematic' paradigms
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Graduate Will humans ever really understand why the universe exists?
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Graduate Is the H.U.D.F. view in excess of 13 bly's. or not.
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Undergrad Faster than Light: Understanding the Expansion of the Universe
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Graduate Revisiting WMAP Data Reveals Significant Changes in CMB Power Spectrum
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Graduate Could Our Universe Be Fractal?
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High School How Can Beginners Learn Physics and Cosmology Effectively?
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Undergrad Life & Death of a Star - Confused
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Graduate Do the Universe's Greatest Voids Challenge Hubble's Law?
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Graduate Did Anti-Gravity Play a Role in the Universe's Early Expansion?
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Graduate Universe Expanding: Space or Matter?
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Graduate Can Dark Matter Travel Faster Than Light?
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