Menu

Navigation

More options

Style variation

Contact us

Cosmology Forum

Join in expert discussion on topics revolving around cosmology. Cosmology is the origin, evolution, structure and eventual fate of the universe.

Filters

What Does 'The Mystery of the Missing Antimatter' Say About Antimatter Scarcity?

Oct 5, 2008 · Replies 12 · Oct 29, 2008

Replies: 12

Views: 3K

CMB Clarifications: Understanding the Impact of Expansion and Temperature Shift

Oct 15, 2008 · Replies 25 · Oct 29, 2008

Replies: 25

Views: 7K

How can we be sure of a singularity?

Oct 14, 2008 · Replies 11 · Oct 29, 2008

Replies: 11

Views: 3K

Are Singularities One-Sided in Terms of Time?

Oct 26, 2008 · Replies 4 · Oct 28, 2008

Replies: 4

Views: 3K

Comments about an issue in cosmology?

Oct 23, 2008 · Replies 10 · Oct 28, 2008

Replies: 10

Views: 2K

Is Matter Re-Emitted After Absorption by a Black Hole?

Oct 22, 2008 · Replies 3 · Oct 28, 2008

Replies: 3

Views: 2K

Looking back in time to the Big Bang

Oct 25, 2008 · Replies 3 · Oct 26, 2008

Replies: 3

Views: 3K

Cosmological Inflation: Theory and Observations

Oct 20, 2008 · Replies 10 · Oct 26, 2008

Replies: 10

Views: 4K

Can the Universe explain itself?

Oct 17, 2008 · Replies 14 · Oct 25, 2008

Replies: 14

Views: 4K

Cosmology and Energy Quantization in Matter

Oct 22, 2008 · Replies 2 · Oct 23, 2008

Replies: 2

Views: 3K

Gonegahgah's rubber sheet example

Oct 21, 2008 · Replies 5 · Oct 23, 2008

Replies: 5

Views: 3K

Help w/ Logic Behind Numbers & CMB Photon Expansion

Oct 21, 2008 · Replies 4 · Oct 22, 2008

Replies: 4

Views: 4K

Multi billion dollar experiments

Oct 18, 2008 · Replies 5 · Oct 20, 2008

Replies: 5

Views: 2K

How far can the universe stretch before it reaches its limits?

Oct 15, 2008 · Replies 10 · Oct 20, 2008

Replies: 10

Views: 4K

Is Peter & Pinto-Neto's Non-Singular Bounce the Future of Cosmology?

Sep 16, 2008 · Replies 8 · Oct 18, 2008

Replies: 8

Views: 4K

What is the size of the Universe when it was only 470 million years old?

Oct 14, 2008 · Replies 7 · Oct 18, 2008

Replies: 7

Views: 4K

The Cause of the Big Bang: Proven Theories

Sep 17, 2008 · Replies 22 · Oct 16, 2008

Replies: 22

Views: 5K

Antimatter gravity hypothesis-question

Oct 13, 2008 · Replies 9 · Oct 14, 2008

Replies: 9

Views: 3K

Something about The Beginning I could never figure out

Oct 12, 2008 · Replies 13 · Oct 14, 2008

Replies: 13

Views: 4K

Singularity Theorem Proof on IanBay's Site

Oct 5, 2008 · Replies 11 · Oct 12, 2008

Replies: 11

Views: 4K

ICosmo: an Interactive Cosmology Package

Oct 9, 2008 · Replies 1 · Oct 11, 2008

Replies: 1

Views: 2K

A theory that universe is infinite

Oct 5, 2008 · Replies 9 · Oct 9, 2008

Replies: 9

Views: 3K

Where Did the Superforce Go After Splitting?

Oct 4, 2008 · Replies 6 · Oct 9, 2008

Replies: 6

Views: 4K

How Does Gravity Affect the Speed of Time Flow?

Oct 4, 2008 · Replies 5 · Oct 8, 2008

Replies: 5

Views: 3K

The Big Bang: Where Did it Come From & Does Time Exist?

Oct 5, 2008 · Replies 5 · Oct 7, 2008

Replies: 5

Views: 2K

My idea on what happened to all the antimatter.

Sep 16, 2008 · Replies 39 · Oct 7, 2008

2

Replies: 39

Views: 6K

Should the universe's definition include higher spatial dimensions?

Oct 2, 2008 · Replies 1 · Oct 2, 2008

Replies: 1

Views: 2K

The Standard Model: Unified Forces or Unanswered Questions?

Oct 2, 2008 · Replies 1 · Oct 2, 2008

Replies: 1

Views: 2K

Detecting Bulk Motion of 700 Clusters with KSZ Effect: Results & Implications

Sep 23, 2008 · Replies 8 · Sep 29, 2008

Replies: 8

Views: 4K

Is the Observable Universe Really Limited to 13.7 Billion Light-Years?

Sep 23, 2008 · Replies 4 · Sep 29, 2008

Replies: 4

Views: 2K

Dark Energy, the Cosmological Constant, General Relativity and you

Apr 2, 2007 · Replies 13 · Sep 27, 2008

Replies: 13

Views: 5K

Couple of Bounce Questions Regarding Black Holes / Universe

Sep 19, 2008 · Replies 7 · Sep 24, 2008

Replies: 7

Views: 3K

Can We Reach and Surpass the Universe's Edge?

Sep 23, 2008 · Replies 3 · Sep 24, 2008

Replies: 3

Views: 5K

Background Radiation: Unraveling the Mysteries of the Universe

Sep 20, 2008 · Replies 7 · Sep 23, 2008

Replies: 7

Views: 3K

What Can We Learn from the Distant Gamma Ray Burst GRB 080913?

Sep 22, 2008 · Replies 1 · Sep 22, 2008

Replies: 1

Views: 3K

More on Infinity: Why Does Balloon Analogy Not Describe Universe?

Aug 19, 2008 · Replies 74 · Sep 20, 2008

3

Replies: 74

Views: 13K

The inconsistent current picture of the universe?

Sep 17, 2008 · Replies 10 · Sep 20, 2008

Replies: 10

Views: 3K

Does the expansion of the universe violate conservation of energy?

Sep 4, 2008 · Replies 6 · Sep 20, 2008

Replies: 6

Views: 5K

Loop Quantum Gravity: Is the Speed of Light a Function of Wavelength?

Sep 18, 2008 · Replies 4 · Sep 18, 2008

Replies: 4

Views: 4K

Do Bounce Theories Consider the Role of Elements in Cosmic Collapses?

Sep 18, 2008 · Replies 3 · Sep 18, 2008

Replies: 3

Views: 3K

Common parlance for Cosmo forum, proposed

Sep 12, 2008 · Replies 14 · Sep 18, 2008

Replies: 14

Views: 4K

Relative Velocity: Can We Exceed the Speed of Light?

Sep 17, 2008 · Replies 1 · Sep 17, 2008

Replies: 1

Views: 2K

Origin of the Uinverse / baby universe

Sep 12, 2008 · Replies 9 · Sep 16, 2008

Replies: 9

Views: 4K

Hydrodynamics of structure formation

Sep 16, 2008 · Replies 2 · Sep 16, 2008

Replies: 2

Views: 3K

Upper BH mass limit, another structure formation clue?

Sep 10, 2008 · Replies 6 · Sep 15, 2008

Replies: 6

Views: 4K

Is Ned's Calculator Mislabeling Angular Size Distance?

Oct 4, 2004 · Replies 3 · Sep 14, 2008

Replies: 3

Views: 6K

Modifying Newtonian Gravitational Force

Sep 13, 2008 · Replies 3 · Sep 13, 2008

Replies: 3

Views: 3K

Oscillating universe and entropy

Aug 30, 2008 · Replies 5 · Sep 13, 2008

Replies: 5

Views: 5K

Usefulness of a 4th spatial dimension

Sep 10, 2008 · Replies 5 · Sep 11, 2008

Replies: 5

Views: 3K

If a blackhole contains a singularity, and the big bang was as well

Jun 27, 2008 · Replies 15 · Sep 10, 2008

Replies: 15

Views: 5K

Is the Universe's Geometry Truly Irrational?

Sep 9, 2008 · Replies 1 · Sep 10, 2008

Replies: 1

Views: 2K

Practical cosmology and cosmology physics

Sep 8, 2008 · Replies 4 · Sep 8, 2008

Replies: 4

Views: 6K

How Many Gamma-Ray Bursts Occur in Each Galaxy?

Sep 4, 2008 · Replies 5 · Sep 8, 2008

Replies: 5

Views: 3K

Ideas about dark matter and structure

Sep 6, 2008 · Replies 12 · Sep 8, 2008

Replies: 12

Views: 3K

Is the Pioneer Anomaly really directed towards the Sun ?

Sep 1, 2008 · Replies 10 · Sep 7, 2008

Replies: 10

Views: 3K

More clues about structure formation (e.g. minimum galaxy mass)

Sep 3, 2008 · Replies 7 · Sep 6, 2008

Replies: 7

Views: 4K

Filaments of Galaxies: Connecting Clusters in Space

Sep 4, 2008 · Replies 1 · Sep 5, 2008

Replies: 1

Views: 3K

How Does Dark Energy Affect the Universe's Expansion?

Aug 29, 2008 · Replies 8 · Sep 5, 2008

Replies: 8

Views: 8K

Alternative hypoteses for cosmological redshift

Sep 5, 2008 · Replies 1 · Sep 5, 2008

Replies: 1

Views: 3K

What Models Explain the Expansion of the Big Bang?

Sep 3, 2008 · Replies 3 · Sep 4, 2008

Replies: 3

Views: 2K

Can arXiv.org's Papers be Simplified for Beginner Physics Students?

Sep 3, 2008 · Replies 8 · Sep 3, 2008

Replies: 8

Views: 3K

Does the Black Hole Event Horizon violate the Equivalence Principle?

Sep 1, 2008 · Replies 8 · Sep 3, 2008

Replies: 8

Views: 4K

What is the outer source of anomalous cosmic rays?

Sep 2, 2008 · Replies 1 · Sep 2, 2008

Replies: 1

Views: 2K

What is the Difference Between Curved Space and Curved Spacetime?

Aug 28, 2008 · Replies 10 · Sep 2, 2008

Replies: 10

Views: 5K

Would like to know what energy is beyond its definition

Aug 15, 2008 · Replies 23 · Sep 2, 2008

Replies: 23

Views: 5K

What Does a Cosmologist Do?

Sep 2, 2008 · Replies 1 · Sep 2, 2008

Replies: 1

Views: 4K

Can human being ever find the real basic laws of our universe?

Aug 29, 2008 · Replies 23 · Sep 1, 2008

Replies: 23

Views: 5K

Friedman equations from flat FRW universe line element

Aug 30, 2008 · Replies 2 · Aug 31, 2008

Replies: 2

Views: 5K

Can black holes really destroy information forever?

Aug 1, 2008 · Replies 12 · Aug 31, 2008

Replies: 12

Views: 3K

Liveweaver's Paper On Expanding Confusion Is Confusing

Aug 28, 2008 · Replies 2 · Aug 28, 2008

Replies: 2

Views: 3K

Is the Big Bang Theory the Only Valid Explanation for the Universe's Origin?

Aug 24, 2008 · Replies 11 · Aug 28, 2008

Replies: 11

Views: 3K

Dark matter within the solar system

Aug 27, 2008 · Replies 1 · Aug 28, 2008

Replies: 1

Views: 2K

Converting Cosmic Super-Voids from Mpc/h to LY - What is the Conversion Factor?

Aug 26, 2008 · Replies 2 · Aug 27, 2008

Replies: 2

Views: 3K

Did the Big Bang Really End or Are We Still in It?

Aug 22, 2008 · Replies 8 · Aug 27, 2008

Replies: 8

Views: 7K

Debunking Dark Energy: Where Does Energy Go in the Universe?

Aug 26, 2008 · Replies 3 · Aug 27, 2008

Replies: 3

Views: 5K

What Causes a Star to Collapse into a Black Hole?

Aug 5, 2008 · Replies 24 · Aug 27, 2008

Replies: 24

Views: 12K

XMM observes evidence of dark energy

Aug 26, 2008 · Replies 4 · Aug 26, 2008

Replies: 4

Views: 2K

Is the Universe Expanding or Are Galaxies Moving Apart?

Jul 11, 2006 · Replies 93 · Aug 26, 2008

4

Replies: 93

Views: 16K

Life in Universe, statistical point of view

Aug 8, 2008 · Replies 7 · Aug 26, 2008

Replies: 7

Views: 3K

Which Weakens More Over Distance: Gravity or Light?

Aug 21, 2008 · Replies 13 · Aug 25, 2008

Replies: 13

Views: 4K

Number of galaxies by type, today

Aug 24, 2008 · Replies 5 · Aug 25, 2008

Replies: 5

Views: 3K

Can the cosmological constant term run in Einstein's equations?

Aug 25, 2008 · Replies 1 · Aug 25, 2008

Replies: 1

Views: 3K

Galaxie recession vs. universe expansion?

Aug 21, 2008 · Replies 6 · Aug 25, 2008

Replies: 6

Views: 3K

Is the Universe Expanding from a Single Point and Can We Observe Its Center?

May 14, 2008 · Replies 49 · Aug 25, 2008

2

Replies: 49

Views: 9K

Principles behind galaxy formation

Aug 22, 2008 · Replies 4 · Aug 25, 2008

Replies: 4

Views: 3K

Origin of universe/big bang question

Aug 9, 2008 · Replies 17 · Aug 24, 2008

Replies: 17

Views: 5K

Possible rotation of a tidal locked object?

Aug 21, 2008 · Replies 2 · Aug 22, 2008

Replies: 2

Views: 3K

Could Invisible Matter Exist in Different Dimensions?

Aug 21, 2008 · Replies 1 · Aug 21, 2008

Replies: 1

Views: 2K

Why is matter not uniformly distributed across space time?

Aug 20, 2008 · Replies 2 · Aug 21, 2008

Replies: 2

Views: 5K

Expansion drains momentum from massive objects

Aug 11, 2008 · Replies 6 · Aug 21, 2008

Replies: 6

Views: 3K

Why is space expanding and matter including galaxies not shrinking?

Apr 9, 2008 · Replies 19 · Aug 20, 2008

Replies: 19

Views: 9K

Is The Definition Of A Singularity Incorrect?

Jul 25, 2008 · Replies 10 · Aug 20, 2008

Replies: 10

Views: 4K

What is the speed of gravity and its relationship to light?

Aug 19, 2008 · Replies 2 · Aug 19, 2008

Replies: 2

Views: 2K

Temperature of the CMB, from WMAP

Aug 12, 2008 · Replies 2 · Aug 19, 2008

Replies: 2

Views: 3K

Why Does the Speed of Light Have a Limit?

Aug 6, 2008 · Replies 28 · Aug 18, 2008

Replies: 28

Views: 6K

Is the energy and mass of the universe constant?

Aug 17, 2008 · Replies 1 · Aug 17, 2008

Replies: 1

Views: 9K

Why Don't Cosmologists Consider Other OUs?

Aug 14, 2008 · Replies 13 · Aug 16, 2008

Replies: 13

Views: 4K

String fusion during the begining of our universe?

Aug 10, 2008 · Replies 4 · Aug 16, 2008

Replies: 4

Views: 3K

How Does the Cosmological Constant Λ Define the Cosmic Scale of Space-Time?

Jul 29, 2008 · Replies 2 · Aug 16, 2008

Replies: 2

Views: 9K

Is Matter Composed of Space and Energy?

Aug 13, 2008 · Replies 3 · Aug 15, 2008

Replies: 3

Views: 3K

Cosmology

Cosmology is the scientific study of the large-scale structure, origin, evolution, and ultimate fate of the universe. It seeks to understand the fundamental nature of the cosmos, including the distribution of galaxies, dark matter, dark energy, and the overall geometry of space-time. Cosmologists explore the early moments of the universe, moments after the Big Bang, and employ various observational tools, such as telescopes and satellites, to gather data that informs our understanding of cosmic evolution.

Key concepts in cosmology include the expansion of the universe, cosmic microwave background radiation, and the formation of galaxies and large-scale structures. It is a field that intersects with physics, astronomy, and astrophysics, providing insights into the vast and intricate tapestry of the cosmos.

Top