What does COLD DARK MATTER mean?

Definitions for COLD DARK MATTER
cold dark mat·ter

This dictionary definitions page includes all the possible meanings, example usage and translations of the word COLD DARK MATTER.

Wiktionary

  1. cold dark matternoun

    Dark matter traveling at classical, non-relativistic speeds

Wikidata

  1. Cold dark matter

    Cold dark matter is a hypothetical form of matter that interacts very weakly with electromagnetic radiation and most of whose particles move slowly compared to the speed of light. It is believed that approximately 80% of matter in the Universe is dark matter, with only a small fraction being the ordinary "baryonic" matter that composes stars and planets. As of 2006, most cosmologists favor the cold dark matter theory as a description of how the Universe went from a smooth initial state at early times to the lumpy distribution of galaxies and their clusters we see today — the large-scale structure of the Universe. The theory sees the role that dwarf galaxies played as crucial, as they are thought to be natural building blocks that form larger structures, created by small-scale density fluctuations in the early Universe. The theory was originally published in 1984 by United States physicists Joel R. Primack, George Blumenthal, and Sandra Moore Faber with UK scientist Martin Rees. In the cold dark matter theory, structure grows hierarchically, with small objects collapsing under their self-gravity first and merging in a continuous hierarchy to form more and more larger and more massive objects. In the hot dark matter paradigm, popular in the early 1980s, structure does not form hierarchically, but rather forms by fragmentation, with the largest superclusters forming first in flat pancake-like sheets and subsequently fragmenting into smaller pieces like our galaxy the Milky Way. The predictions of hot dark matter disagree with observations of large-scale structures, whereas the cold dark matter paradigm is in general agreement with the observations.

How to pronounce COLD DARK MATTER?

How to say COLD DARK MATTER in sign language?

Numerology

  1. Chaldean Numerology

    The numerical value of COLD DARK MATTER in Chaldean Numerology is: 1

  2. Pythagorean Numerology

    The numerical value of COLD DARK MATTER in Pythagorean Numerology is: 1

Translation

Find a translation for the COLD DARK MATTER definition in other languages:

Select another language:

  • - Select -
  • 简体中文 (Chinese - Simplified)
  • 繁體中文 (Chinese - Traditional)
  • Español (Spanish)
  • Esperanto (Esperanto)
  • 日本語 (Japanese)
  • Português (Portuguese)
  • Deutsch (German)
  • العربية (Arabic)
  • Français (French)
  • Русский (Russian)
  • ಕನ್ನಡ (Kannada)
  • 한국어 (Korean)
  • עברית (Hebrew)
  • Gaeilge (Irish)
  • Українська (Ukrainian)
  • اردو (Urdu)
  • Magyar (Hungarian)
  • मानक हिन्दी (Hindi)
  • Indonesia (Indonesian)
  • Italiano (Italian)
  • தமிழ் (Tamil)
  • Türkçe (Turkish)
  • తెలుగు (Telugu)
  • ภาษาไทย (Thai)
  • Tiếng Việt (Vietnamese)
  • Čeština (Czech)
  • Polski (Polish)
  • Bahasa Indonesia (Indonesian)
  • Românește (Romanian)
  • Nederlands (Dutch)
  • Ελληνικά (Greek)
  • Latinum (Latin)
  • Svenska (Swedish)
  • Dansk (Danish)
  • Suomi (Finnish)
  • فارسی (Persian)
  • ייִדיש (Yiddish)
  • հայերեն (Armenian)
  • Norsk (Norwegian)
  • English (English)

Word of the Day

Would you like us to send you a FREE new word definition delivered to your inbox daily?

Please enter your email address:


Citation

Use the citation below to add this definition to your bibliography:

Style:MLAChicagoAPA

"COLD DARK MATTER." Definitions.net. STANDS4 LLC, 2024. Web. 24 Dec. 2024. <https://www.definitions.net/definition/COLD+DARK+MATTER>.

Discuss these COLD DARK MATTER definitions with the community:

0 Comments

    Are we missing a good definition for COLD DARK MATTER? Don't keep it to yourself...

    Free, no signup required:

    Add to Chrome

    Get instant definitions for any word that hits you anywhere on the web!

    Free, no signup required:

    Add to Firefox

    Get instant definitions for any word that hits you anywhere on the web!

    Quiz

    Are you a words master?

    »
    a decorative musical accompaniment (often improvised) added above a basic melody
    A flub
    B abrade
    C exacerbate
    D descant

    Nearby & related entries:

    Alternative searches for COLD DARK MATTER: