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

Solution to the lithium discrepancy

Aug 21, 2006 · Replies 1 · Aug 21, 2006

Replies: 1

Views: 3K

What are the Origins and Characteristics of Cosmic Neutrinos?

Aug 9, 2006 · Replies 1 · Aug 20, 2006

Replies: 1

Views: 3K

Expanding universe and Conservation of energy.

Aug 16, 2006 · Replies 7 · Aug 17, 2006

Replies: 7

Views: 4K

The Existence of the Red Ball Law: A Universal Truth?

Aug 14, 2006 · Replies 4 · Aug 16, 2006

Replies: 4

Views: 3K

How are the Casimir Effect, Vacuum Energy, Inflation, and Dark Energy Connected?

Aug 5, 2006 · Replies 9 · Aug 15, 2006

Replies: 9

Views: 3K

Is the Multiverse Theory More Plausible Than Inflationary or Ekpyrotic Models?

Mar 21, 2004 · Replies 16 · Aug 11, 2006

Replies: 16

Views: 5K

What Are Some Questions About the Universe That a Newbie May Have?

Aug 10, 2006 · Replies 7 · Aug 10, 2006

Replies: 7

Views: 2K

Universe might be older and bigger

Aug 7, 2006 · Replies 1 · Aug 7, 2006

Replies: 1

Views: 2K

Ultimate configuration of a flat universe

Aug 6, 2006 · Replies 1 · Aug 6, 2006

Replies: 1

Views: 2K

Where Does '13.7 Billion' Come From?

Aug 5, 2006 · Replies 3 · Aug 6, 2006

Replies: 3

Views: 3K

Is Planck's Constant Constant, or Does it Vary Through Spacetime?

Aug 4, 2006 · Replies 2 · Aug 6, 2006

Replies: 2

Views: 6K

Collection of known scientists that are beyond the standard model

Aug 5, 2006 · Replies 1 · Aug 5, 2006

Replies: 1

Views: 4K

Does the 2nd Law of Thermodynamics Apply to Entropy in a Big Crunch?

Jul 28, 2006 · Replies 7 · Aug 4, 2006

Replies: 7

Views: 8K

What are the latest exciting results from WMAP's three-year data release?

Mar 16, 2006 · Replies 80 · Aug 4, 2006

3

Replies: 80

Views: 17K

Is the Universe Really Expanding or Just Revolving Around a Central Gravity?

Mar 4, 2006 · Replies 55 · Aug 4, 2006

2

Replies: 55

Views: 9K

Barbara Ryden's Cosmology Book: Reviews & Opinions

Jul 25, 2006 · Replies 6 · Aug 3, 2006

Replies: 6

Views: 5K

DE & DM BB product or post-BB?

Aug 1, 2006 · Replies 8 · Aug 3, 2006

Replies: 8

Views: 2K

Do Cosmologists Truly Understand the Inflaton and Gravitational Fields?

Jul 28, 2006 · Replies 12 · Aug 1, 2006

Replies: 12

Views: 3K

Position of Earth in the Universe

Jul 16, 2006 · Replies 50 · Aug 1, 2006

2

Replies: 50

Views: 27K

Different laws after a big crunch/big bang

Jul 30, 2006 · Replies 2 · Jul 31, 2006

Replies: 2

Views: 4K

Is the Accelerated Expansion of the Universe Misunderstood?

Jul 27, 2006 · Replies 34 · Jul 31, 2006

2

Replies: 34

Views: 5K

What is the purpose of the entire infinite universe?

Jul 28, 2006 · Replies 2 · Jul 28, 2006

Replies: 2

Views: 2K

Time Travel Yeah I know maybe some parallel universe talk too

Jun 10, 2006 · Replies 20 · Jul 28, 2006

Replies: 20

Views: 4K

Sachs-Wolfe effect and dark energy

Jul 27, 2006 · Replies 2 · Jul 28, 2006

Replies: 2

Views: 3K

Big Bang Theory: Can Universe Expand Faster than Light?

Jul 27, 2006 · Replies 3 · Jul 27, 2006

Replies: 3

Views: 3K

Entropy, information and Omphalos cosmology

Jul 15, 2006 · Replies 21 · Jul 27, 2006

Replies: 21

Views: 5K

What Basis Supports the Theory of an Expanding Universe?

Jul 24, 2006 · Replies 16 · Jul 25, 2006

Replies: 16

Views: 3K

What is the current consensus on 7Li abundances and key research papers?

Jul 6, 2006 · Replies 3 · Jul 24, 2006

Replies: 3

Views: 3K

Universe: Infinite Nature & Finite Singularity

Jul 23, 2006 · Replies 2 · Jul 23, 2006

Replies: 2

Views: 4K

Observing a Body at z=6: Calculating Photon Requirements

Jul 21, 2006 · Replies 3 · Jul 22, 2006

Replies: 3

Views: 3K

Is the curvature of the universe affected by dark energy and if so, how?

Jul 19, 2006 · Replies 6 · Jul 22, 2006

Replies: 6

Views: 4K

Black holes and the expanding universe

Jul 21, 2006 · Replies 4 · Jul 22, 2006

Replies: 4

Views: 3K

Planck - stelactic - cosmological black hole symmetry?

Jul 18, 2006 · Replies 3 · Jul 21, 2006

Replies: 3

Views: 3K

Question on the expansion of space

Jul 20, 2006 · Replies 1 · Jul 21, 2006

Replies: 1

Views: 2K

No Redshift from Distant Galaxies: Implications for Universe

Jul 19, 2006 · Replies 3 · Jul 20, 2006

Replies: 3

Views: 3K

Thiemann's New Theory: Solving Problem of Time in GR & Cosmology

Jul 18, 2006 · Replies 4 · Jul 19, 2006

Replies: 4

Views: 2K

Objects faster than light because space is expanding

Jul 11, 2006 · Replies 13 · Jul 18, 2006

Replies: 13

Views: 4K

Theories without the use of cosmological principle.

Jul 15, 2006 · Replies 1 · Jul 17, 2006

Replies: 1

Views: 3K

Is Every Galaxy the Center of the Universe?

Jul 12, 2006 · Replies 55 · Jul 16, 2006

2

Replies: 55

Views: 12K

Just read decoding the universe : question

Jul 13, 2006 · Replies 6 · Jul 14, 2006

Replies: 6

Views: 4K

Can the Large Number Coincidence Be Explained by Simple Scaling Laws?

Jul 14, 2006 · Replies 1 · Jul 14, 2006

Replies: 1

Views: 4K

The cosmological principle in simple models of the universe

Jul 11, 2006 · Replies 10 · Jul 13, 2006

Replies: 10

Views: 4K

Open closed flat confused about what universe counts

Jul 10, 2006 · Replies 2 · Jul 12, 2006

Replies: 2

Views: 3K

Amount of Matter in the Universe

Jul 10, 2006 · Replies 12 · Jul 12, 2006

Replies: 12

Views: 16K

Is Our Universe Flat or Embedded on a Singularity?

Jul 5, 2006 · Replies 9 · Jul 10, 2006

Replies: 9

Views: 3K

Is there an Age Problem in the Mainstream Model?

Oct 13, 2005 · Replies 22 · Jul 10, 2006

Replies: 22

Views: 7K

Accelerating Universe: Experiments, Acceptance & Implications

Mar 23, 2006 · Replies 15 · Jul 9, 2006

Replies: 15

Views: 5K

How Can Scale-Related Mass Transform Our Understanding of Cosmological Problems?

Jun 5, 2006 · Replies 7 · Jul 8, 2006

Replies: 7

Views: 3K

Could black holes be the creators of galaxies?

Jul 6, 2006 · Replies 3 · Jul 8, 2006

Replies: 3

Views: 3K

Hyperbolic structures in the universe

Jul 5, 2006 · Replies 4 · Jul 8, 2006

Replies: 4

Views: 3K

How Can We Comprehend the Concept of a Finite Universe?

Mar 30, 2006 · Replies 71 · Jun 27, 2006

3

Replies: 71

Views: 13K

Photon coming from a far away star is redshifted?

Jun 22, 2006 · Replies 12 · Jun 26, 2006

Replies: 12

Views: 3K

Tensor Vector scaler theories.

Jun 15, 2006 · Replies 5 · Jun 23, 2006

Replies: 5

Views: 3K

What Are the Expansive and Contractive Cycles of the Universe?

Jun 22, 2006 · Replies 1 · Jun 22, 2006

Replies: 1

Views: 6K

The universe, are we on the right track?

Jun 22, 2006 · Replies 3 · Jun 22, 2006

Replies: 3

Views: 2K

Is a zero energy universe a consequence from FRWL equations

Jun 21, 2006 · Replies 1 · Jun 21, 2006

Replies: 1

Views: 3K

Book suggestion in reply to question from oldman

Jun 11, 2006 · Replies 19 · Jun 21, 2006

Replies: 19

Views: 3K

The Mysteries of the Cosmos: Uncovering the Hidden Truths and Purpose"

Jun 17, 2006 · Replies 5 · Jun 21, 2006

Replies: 5

Views: 4K

Relative peculiar velocity of MBR vs that of neutrino background

Jun 18, 2006 · Replies 3 · Jun 20, 2006

Replies: 3

Views: 3K

20 trillion solarmass hot cloud going 750 clicks

Jun 18, 2006 · Replies 2 · Jun 18, 2006

Replies: 2

Views: 3K

Dark matter, dark energy & gravity

Mar 3, 2006 · Replies 45 · Jun 16, 2006

2

Replies: 45

Views: 12K

Is the Universe Beyond Our Perception?

Jun 13, 2006 · Replies 2 · Jun 13, 2006

Replies: 2

Views: 2K

Help stamp out travel-time distance

May 16, 2006 · Replies 9 · Jun 12, 2006

Replies: 9

Views: 4K

Starkman tinkers with MOG (relativistic MOND)

Jun 11, 2006 · Replies 3 · Jun 12, 2006

Replies: 3

Views: 3K

Terminal Velocity: Speed Beyond the Universe

May 23, 2006 · Replies 3 · Jun 12, 2006

Replies: 3

Views: 3K

What existed before the big bang?

May 9, 2006 · Replies 42 · Jun 12, 2006

2

Replies: 42

Views: 13K

Is the Big Bang Like a Ripple in a Pond?

Apr 27, 2006 · Replies 8 · Jun 11, 2006

Replies: 8

Views: 3K

Was the Big Bang a Black Hole Explosion?

Jun 10, 2006 · Replies 1 · Jun 11, 2006

Replies: 1

Views: 5K

Is Causality Fundamental in the Universe?

May 12, 2006 · Replies 10 · Jun 9, 2006

Replies: 10

Views: 9K

MOND gravity, an explanation please.

Jun 8, 2006 · Replies 3 · Jun 9, 2006

Replies: 3

Views: 5K

Is the Universe Expanding and What Does This Mean for the Future?

May 27, 2006 · Replies 3 · Jun 7, 2006

Replies: 3

Views: 4K

What Effect Does Cosmological Expansion Have on Solar System Mass?

Jun 6, 2006 · Replies 6 · Jun 6, 2006

Replies: 6

Views: 3K

Redshifts, what frequencies are they looking at?

Jun 2, 2006 · Replies 12 · Jun 6, 2006

Replies: 12

Views: 3K

Photon frequency loss over time?

May 30, 2006 · Replies 40 · Jun 4, 2006

2

Replies: 40

Views: 10K

Is the universe examining itself?

Feb 3, 2005 · Replies 56 · Jun 3, 2006

2

Replies: 56

Views: 11K

What Density of Radiation Triggers Gravitational Clumping and Black Holes?

May 28, 2006 · Replies 1 · Jun 2, 2006

Replies: 1

Views: 3K

How does the cosmic microwave background (CMB) define a cosmological frame?

Jun 2, 2006 · Replies 3 · Jun 2, 2006

Replies: 3

Views: 4K

Electromagnetic waves and dak matter

May 25, 2006 · Replies 7 · Jun 1, 2006

Replies: 7

Views: 3K

The Virial theorem and Cosmology

May 24, 2006 · Replies 27 · May 31, 2006

Replies: 27

Views: 10K

How could the universe possibly expand?

May 30, 2006 · Replies 2 · May 30, 2006

Replies: 2

Views: 3K

Why logic and reason fail when we try to trace back the origin of universe

May 27, 2004 · Replies 20 · May 29, 2006

Replies: 20

Views: 8K

Cosmology-Particle Physics connection (Mark Trodden)

May 28, 2006 · Replies 1 · May 28, 2006

Replies: 1

Views: 4K

Does the Hubble Constant Variation Over Time Affect the d/R = v/c Equation?

May 24, 2006 · Replies 2 · May 24, 2006

Replies: 2

Views: 3K

Can the Mass of Cosmic Rays in the Universe Be Calculated?

May 19, 2006 · Replies 6 · May 24, 2006

Replies: 6

Views: 3K

How to probe the homogeneity of the universe ?

May 15, 2006 · Replies 8 · May 24, 2006

Replies: 8

Views: 4K

How do you interpret the Robertson-Walker metric

May 19, 2006 · Replies 26 · May 22, 2006

Replies: 26

Views: 8K

CMB vs Neutrino BG: Why Does Neutrino Transparency Occur First?

May 1, 2006 · Replies 6 · May 21, 2006

Replies: 6

Views: 3K

What Could We See If We Observed the Big Bang with a Powerful Telescope?

May 20, 2006 · Replies 12 · May 21, 2006

Replies: 12

Views: 4K

Behind the border off the universe

May 21, 2006 · Replies 7 · May 21, 2006

Replies: 7

Views: 2K

Behind the border off the universe

May 21, 2006 · Replies 9 · May 21, 2006

Replies: 9

Views: 4K

Could Changing Gravitational Constant Explain Hubble's Law Alternatives?

May 1, 2006 · Replies 77 · May 21, 2006

3

Replies: 77

Views: 12K

What Are the Leading Theories on Dark Energy?

May 15, 2006 · Replies 17 · May 21, 2006

Replies: 17

Views: 7K

Evolution of the Observable Universe

May 14, 2006 · Replies 20 · May 19, 2006

Replies: 20

Views: 7K

Why do we live in a Friedmann universe?

May 17, 2006 · Replies 10 · May 19, 2006

Replies: 10

Views: 8K

Rates of galactic evolution (first 3 billion years)

May 14, 2006 · Replies 12 · May 17, 2006

Replies: 12

Views: 3K

How do we know that the expansion of the universe is radially symmetric?

May 10, 2006 · Replies 21 · May 15, 2006

Replies: 21

Views: 4K

Expanding Universe: Metaphysics & Consciousness

Apr 20, 2006 · Replies 2 · May 14, 2006

Replies: 2

Views: 2K

The Issue of the Beginning (new paper by Ashtekar)

May 9, 2006 · Replies 9 · May 13, 2006

Replies: 9

Views: 3K

Requesting help on diagramming the universe

May 6, 2006 · Replies 26 · May 11, 2006

Replies: 26

Views: 5K

Astonishing Coincidence: Age of Universe in $\Lambda$CDM & Milne Cosmologies

May 9, 2006 · Replies 4 · May 10, 2006

Replies: 4

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