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 Another hawking radiation question
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High School Gravity & Big Bang: Can Matter Escape Its Own Pull?
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Graduate Can a Photon's Energy Approach Zero?
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Graduate Friiedman Fun Facts to know and tell
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Graduate What are the unexpected aspects of cosmology?
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Graduate Are Wormholes at the End of Black Holes a Possible Theory?
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Undergrad How Far Can We See the Brightest Known Star?
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High School How Will the Universe Ultimately Meet Its End?
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High School Matter combined with Antimater question
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Graduate Is the Friedmann equation derived ONLY from the Einstein Field Equations?
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Graduate Can Two Infinitely Sized Objects Exist in an Infinite Space?
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Undergrad Do black holes interact with dark matter/energy?
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Graduate Expanding and Accelerating Space in Layman's Terms
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Graduate Do new bits cause the expansion and acceleration of the Universe?
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High School Are new planets and stars still forming?
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Undergrad What accounts for the expansion of the Universe accelerating?
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Graduate What would the largest anti-matter object be?
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Undergrad Size Universe: Radius 13.7B Years Old?
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Graduate Is the Friedmann expansion the ultimate 'free lunch'?
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Undergrad What are some other theories about dark matter and dark energy?
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Undergrad Dark Matter & Dark Energy: Unfound Cosmological Science
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Debunking Video: Uncovering the Truth
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Graduate Why our time dimension is about to become space-like
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Graduate Is it helpful in formulating theories to assume the opposite of what we see?
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Graduate Electricity and Birkeland currents in space
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Graduate Can Energy Density in Deep Space Vacuums Be Measured?
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High School Is a Larger Dimension Required for the Universe's Expansion?
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Graduate Interpretation of dark energy and gravity as the same thing
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Undergrad What is the evidence and history behind the Big Bang Theory?
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Graduate Calculating Dark Matter's Acoustic Peak Resonance: A Homework Assignment
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Graduate Believing in an Infinite Universe: Reasons Explored
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Undergrad Law of conservation of Energy please explain how it is
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Graduate Can Dark Energy Be Tested in a Lab Using Superconductors?
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Graduate Parallel universes make quantum sense?
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Undergrad Questions About the Flat Universe: Answers Inside
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Graduate Explaining Universe's Fate with Thermodynamics
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Graduate Is the Big Bang Actually a White Hole?
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Graduate Uniqueness of Bojowald's Bounce in the Multiverse
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Graduate Explaining the Quantum Mystery: Are Parallel Universes the Answer?
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Undergrad How Have Advances in Cosmology Progressed Since Einstein?
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Graduate Supernova Distance Debate: New Evidence from Astrophysics Research by H. Arp"
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Graduate What Could Have Happened Before the Big Bang Theory?
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Graduate Einstein-deSitter Expansion Questions v.2
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Undergrad Supernova in Our Galaxy: Impact on Earth and Frequency of Occurrence
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Graduate Is a toroidal black hole possible?
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Experience the Magic of Across The Universe - A Must-See Film!
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Graduate Parallel Universes: The Mind-Boggling Reality Confirmed by Oxford Scientists
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Graduate Einstein-deSitter Expansion Questions
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Undergrad What is the Relationship Between the Age and Size of the Universe?
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Graduate Quantum Gravity Explained: What It Is and Resources to Learn More
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Graduate How do QG people evolve particles into the theory?
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Graduate Measuring Red Shift with Accuracy
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Graduate Quantum Mechanics and the Universe
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Graduate Does Spacetime Curve Into Hidden Dimensions? Understanding Curvature
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Graduate Earliest time of light emission after Big Bang
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Graduate Lambda contibutes to bending (says Wolfgang Rindler)
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Undergrad U think that the univers is realy expanding? think again
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High School Civilizations in other galaxies?
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Graduate Cold Dark Matter: Bottom-Up vs. Top-Down Structure Formation
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Action/reaction : if we do an action that requires energy of the whole universe
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Graduate Uncovering the Mysteries of the Universe: Big Bang Questions Answered
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Graduate Alternative to the big bang [new scientist]
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Undergrad Is Additional Speed Beyond Orbital Velocity Needed for Escape?
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Graduate Is the Universe Really Flat Despite the Existence of Gravity?
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Graduate Is the Universe Flat and What Does That Mean for Its Geometry?
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Graduate Bojo in Nature Physics July issue, probing before bigbang with quantum cosmology
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Undergrad What Causes Voids in the Expanding Universe?
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Graduate Trying to Understand Time Dilaton
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Comets Heading Towards Earth: True or False?
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Undergrad Why do some people deny the evidence for the Big Bang Theory?
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Graduate What is the role of negative gravity in the Big Bang theory?
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Graduate What's Wrong with My Pet Theory of Cosmology?
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Graduate QG Light Time Arrivals & Swiss Cheese Effect
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Graduate Are all lines through space also loops?
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Undergrad Background radiation and photons
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High School What Triggered the Big Bang and Created Our Universe?
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Graduate Modern Cosmology: Science or Folktale?
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Graduate Can LQC explain the bounce of black holes?
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Graduate Vacuum Energy and Dark Energy: Are They One and the Same?
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Graduate Hubble's Constant: Calculating Expansion Rate
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Graduate Singularity (Wikipedia and Mathworld definitions)
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High School The Universe - books for youngsters (?)
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Graduate Big Bang and absolute simultaneity
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Graduate Could MAGIC IACT Reveal Insights into Quantum Gravity?
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Graduate Observing the universe existing simultaneously with us
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Graduate I've got an idea that i would like some help developing
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Undergrad Who was Ralph Alpher and what impact did he have on the world of physics?
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Graduate Three video-talks on the CMB and structure of universe
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Graduate Are we just a simulation? (Woit's message to the overlords: Dont turn us off)
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Undergrad Number 47: Uncovering Universe's Basic Structure
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Graduate IGC Inaugural Conference (Institute for Gravitation and the Cosmos)
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Graduate Entropy in a contracting universe?
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Graduate 60 efolds with no inflaton, no slow roll, no reheating-QEG's apt to be right
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Undergrad What is the alternative to the concept of a singularity in cosmology?
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High School Frequency of supernovae in the universe
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Graduate Supernova types 1a and the accelerating cosmos
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Graduate Exploring the Big Bang: The Role of Quark Collision Experiments
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Graduate How Can an Infinite Universe Expand?
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Graduate Are there any theories about why causality appears?
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Graduate What do we mean by Is the universe losing energy ?
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