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 How do you think of the Cosmic Event Horizon?
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Graduate What are the boundary conditions of the universe?
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Graduate Is H(hbar)/2c^2 a Possible Fundamental Unit of Mass?
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Undergrad Hubble's Deep Field View in the long long Future
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Graduate Cosmology as quantum, ie. M-theory
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Graduate Can We Visualize Spatial Direction in Space?
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Graduate Is the concept of space and time before the Big Bang scientifically irrelevant?
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Graduate Could the objects in the universe be shrinking?
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Graduate Could Black Holes Be Baby Universes Evolving Backwards in Time?
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Graduate Origin from Nothing - what does it mean?
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Graduate Empirically testing black holes.
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Graduate Deceleration Parameter Computation
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Graduate Does geometry have any bearing on the fine tuning argument.
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Undergrad Acceleration proportional to what?
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Graduate Can you imagine geometry without matter and light?
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Graduate No Boundary Condition Universe: Stephen Hawking
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Graduate Is Space Fabric Real or Just a Theoretical Construct?
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High School Expanding Universe: Is Space Like a Balloon?
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Graduate After Big Bang: Are There Different Universe Building Blocks?
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Graduate Explaining the Big Bang Theory for Dummies
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Graduate Photon pressure from energy density
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Graduate What Lies Beyond the Observable Cosmos?
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Graduate How does rainbow gravity reshape our understanding of inflation?
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Graduate Is Dark Flow Evidence of Other Universes According to Planck Data?
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Graduate Physics & Cosmology: Dimensionless Void Pre Big Bang
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Graduate Suppose gravitons do leak into Calabai Yau spaces
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Graduate FRW Universe with Equation of State: Examining Singularity at Big Bang
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Graduate Two kinds of flatness? cosmological constant?
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Graduate The linearization of the metric of curved space-time
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Graduate Why is this theory simply ignored?
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Graduate What Do Canonical Quantum Gravity Models Tell Us About the Big Bang?
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Graduate Universe is infinite-no beginning and no end
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Graduate Problem understanding how universe is infinitely flat
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Undergrad How has CMB research affected modern technology
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Graduate Is the Observable Universe Flat Despite Gravitational Warping?
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Undergrad Fate of Galaxies: Will Stars be Pulled into Black Holes?
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Graduate A small black hole goes thru a toroidal hole.
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Graduate What is space in contrast to void?
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Graduate Can the shape of the universe be inferred from the CMBR?
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Graduate Gravitational waves analogous to photons and EM radiation?
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Graduate What about 2nd law of thermodynamics in Cyclic Universe Model?
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Graduate Traveling to other universes in an infinite multiverse
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Graduate Quantization of Gravity: Testing with CMBR Polarization | Krauss, Wilczek
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Graduate Galileon Cosmology Explained: Summary & Overview
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Graduate Could Dark Energy be a form of Dark Matter
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Undergrad Could Evil Parallel Universes Really Exist?
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Graduate Goodbye Big Bang, hello black hole?
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Graduate Einstein field equations and scale invariance
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Graduate Is there a chronology in the multiverse?
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Graduate Travel through different vacuum phase
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Graduate Is the expansion of the universe relative to our clocks and rulers?
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Undergrad The Big Bang: Light Before Matter?
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Graduate Question about pre-CMB & Lepton Number
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Graduate Can Einstein's Field equation explain inflation?
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Graduate Is the Universe Really Expanding?
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High School Why Do Some Galaxies Have a Spiral Shape?
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Undergrad Understanding Frame Dragging: Explanation and Effects
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Graduate A temporally and spatially open universe
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Graduate Distribution of mass - from decoupling to present
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Graduate Understanding LIGO and Its Implications
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Graduate What happens to the shape of particles when exposed to massive gravity?
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Graduate 1000 TeV neutrinos - dark matter decay proposed as explanation
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Graduate What is wrong with eternal inflation model?
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Graduate Difference between Big Chill and Big Snap scenarious
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Graduate Multiverse Evidence Explanation?
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Graduate What is Space outside of the universe and infinity according to Physics?
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Graduate Why Use Wave Modes to Describe Density Fluctuations?
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Graduate Why galaxies are further from us
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Graduate Theoretical physicist says universe has radius=10cm
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Graduate Why Does the Cosmological Constant Have Different Units?
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Graduate Inflationary cosmology questions
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Graduate Why the fundamental laws of nature is the way it is?
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Graduate Cosmological Principle: Trying to define large-scale homogeneity
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Graduate New space that accounts for dark energy?
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Graduate Are We Living Inside a Black Hole?
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Graduate Could the Universe Be Shrinking Instead of Expanding?
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Graduate Questions and comments about cosmo FAQ
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High School Growth of Universe: Branching vs Other Reasons
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Graduate Could an Anti-Universe Exist?
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Graduate An infinite universe is necessarily in expansion
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Graduate Can we trust our measurements in cosmology?
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Undergrad Does ''expanding space'' mean formation of new space?
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Graduate Is Universal Time the Key to Understanding Existence?
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Graduate How are inflaton particles that drive the early inflation created?
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Graduate Is there evidence of space surrounding the BB singularity?
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High School Universe will end in 5 billion years?
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Graduate What is the size of a singularity in a black hole?
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Graduate Are Quantum Mechanics and Cosmology Directly Linked?
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Graduate What were the initial ingredients of the BB
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Graduate Consequences of parallel universes
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Graduate Are There Other Universes with Different Laws of Physics and Math?
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Graduate Are branes valid science or just fancy math?
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Graduate Using positive pressure in cosmological equations
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Graduate How Did Quarks Occur in the Early Universe?
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Graduate The epansion of space, not matter
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Graduate Metric expansion in terms of planck pixels
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High School Heat Death of the Universe: Is It Inevitable?
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Undergrad What evidence supports the validity of the Big Bang theory?
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Graduate Matter ingestion rate of blackholes
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Graduate A question relating to expansion rate of the Universe
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