Lyt når som helst, hvor som helst

Nyd den ubegrænsede adgang til tusindvis af spændende e- og lydbøger - helt gratis

  • Lyt og læs så meget du har lyst til
  • Opdag et kæmpe bibliotek fyldt med fortællinger
  • Eksklusive titler + Mofibo Originals
  • Opsig når som helst
Prøv nu
DK - Details page - Device banner - 894x1036
Cover for Celestial Conundrums: Nine Space Oddities Challenging Scientific Understanding

Celestial Conundrums: Nine Space Oddities Challenging Scientific Understanding

Varighed
2T 42M
Sprog
Engelsk
Format
Kategori

Fakta

Dark matter, a mysterious and invisible substance, remains one of the most profound puzzles in modern astrophysics. Despite being undetectable by conventional means, its presence is inferred through its gravitational effects on visible matter, radiation, and the large-scale structure of the universe. Comprising roughly 27% of the universe’s total mass-energy content, dark matter far outweighs the ordinary matter that makes up stars, planets, and galaxies. However, scientists have yet to identify its true nature.

The origins of the dark matter hypothesis trace back to the early 20th century when astronomers noticed an unusual phenomenon. The visible mass of galaxies and clusters of galaxies appeared insufficient to explain their observed gravitational behavior. In the 1930s, Swiss astronomer Fritz Zwicky first coined the term “dark matter” while studying galaxy clusters. He realized that the galaxies within these clusters were moving too quickly for the amount of visible matter present, suggesting the existence of an unseen mass exerting a gravitational pull. Since then, dark matter has become an essential concept for understanding the dynamics of galaxies and the larger structure of the universe.

Over the decades, further evidence for dark matter has emerged, from the rotation curves of galaxies to the behavior of galaxy clusters. When astronomers measure how fast stars orbit the center of a galaxy, they find that stars on the outer edges move much faster than expected based on the mass visible in the galaxy. If only the observed matter were present, the stars would not have enough gravitational pull to remain bound to the galaxy. This discrepancy is explained by the presence of an unseen mass—dark matter—scattered throughout the galaxy. Additionally, observations of the cosmic microwave background radiation, which reflects the early universe, also point to dark matter's existence as a key player in the formation of the cosmos.

© 2025 Cobbo Publishing LLC (Lydbog): 9798347911141

Udgivelsesdato

Lydbog: 12. januar 2025

Andre kan også lide...

  1. Journey Through Space, Time, and Motion Simplified: "Master Your Journey Through Space, Time, and Motion with Engaging Audio Lessons for Peak Performance!"
    Journey Through Space, Time, and Motion Simplified: "Master Your Journey Through Space, Time, and Motion with Engaging Audio Lessons for Peak Performance!" Dorian Thorne
  2. Voyage Through the Universe: An Accessible Guide: "Unlock Cosmic Secrets! Master the Universe with Engaging Audio Lessons for All Learners."
    Voyage Through the Universe: An Accessible Guide: "Unlock Cosmic Secrets! Master the Universe with Engaging Audio Lessons for All Learners." Tristan Everhart
  3. Astrogeology: Understanding the Geology of Planets
    Astrogeology: Understanding the Geology of Planets Mike Crawford
  4. Selenology: The Study of the Earth's Natural Satellite
    Selenology: The Study of the Earth's Natural Satellite Mike Crawford
  5. Journey Through Time's Mysteries: An Engaging Exploration: Unlock the Mysteries of History! Discover gripping audio lessons for a captivating exploration of the ages.
    Journey Through Time's Mysteries: An Engaging Exploration: Unlock the Mysteries of History! Discover gripping audio lessons for a captivating exploration of the ages. Thane Waverly
  6. A World Safe for Commerce: American Foreign Policy from the Revolution to the Rise of China
    A World Safe for Commerce: American Foreign Policy from the Revolution to the Rise of China Dale C. Copeland
  7. Climate Hope: Stories of Action in an Age of Global Crisis
    Climate Hope: Stories of Action in an Age of Global Crisis David Geselbracht
  8. The Odd Quantum
    The Odd Quantum Sam Treiman
  9. Restoring the Pitchfork Ranch: How Healing a Southwest Oasis Holds Promise for Our Endangered Land
    Restoring the Pitchfork Ranch: How Healing a Southwest Oasis Holds Promise for Our Endangered Land A. Thomas Cole
  10. Surviving Death
    Surviving Death Mark Johnston
  11. Demokratia: A Conversation on Democracies, Ancient and Modern
    Demokratia: A Conversation on Democracies, Ancient and Modern Josiah Ober
  12. Eric Brighteyes
    Eric Brighteyes Henry Rider Haggard
  13. Humanism: Celebrating Human Potential and Values
    Humanism: Celebrating Human Potential and Values Hector Davidson
  14. Inward Revolution: A Journey of Radical Transformation
    Inward Revolution: A Journey of Radical Transformation Lawrence W. Rodgers
  15. Computational Physics: Using Computers to Solve Physical Problems
    Computational Physics: Using Computers to Solve Physical Problems Mark Hedges
  16. This Contested Land: The Storied Past and Uncertain Future of America’s National Monuments
    This Contested Land: The Storied Past and Uncertain Future of America’s National Monuments McKenzie Long
  17. Unearthed Truths: The Archaeological Quest for the Bible's Eternal Veracity
    Unearthed Truths: The Archaeological Quest for the Bible's Eternal Veracity Felipe chavarro Polanía
  18. When I First Held You: 22 Critically Acclaimed Writers Talk About the Triumphs, Challenges, and Transformative Experience of Fatherhood
    When I First Held You: 22 Critically Acclaimed Writers Talk About the Triumphs, Challenges, and Transformative Experience of Fatherhood Brian Gresko
  19. Thermodynamics and Statistical Mechanics: Principles of Heat, Energy, and Statistical Systems
    Thermodynamics and Statistical Mechanics: Principles of Heat, Energy, and Statistical Systems Mark Hedges
  20. The Nation-State in Question
    The Nation-State in Question John A. Hall
  21. Unwavering: The Wives Who Fought to Ensure No Man is Left Behind
    Unwavering: The Wives Who Fought to Ensure No Man is Left Behind Taylor Baldwin Kiland
  22. Ground War: Courts, Commissions, and the Fight over Partisan Gerrymanders
    Ground War: Courts, Commissions, and the Fight over Partisan Gerrymanders Nicholas Goedert
  23. Fed, White, and Blue: Finding America with My Fork
    Fed, White, and Blue: Finding America with My Fork Simon Majumdar

Vælg dit abonnement

  • Over 600.000 titler

  • Download og nyd titler offline

  • Eksklusive titler + Mofibo Originals

  • Børnevenligt miljø (Kids Mode)

  • Det er nemt at opsige når som helst

Den mest populære

Premium

For dig som lytter og læser ofte.

129 kr. /måned
  • 1 konto

  • 100 timer/måned

  • Eksklusivt indhold hver uge

  • Fri lytning til podcasts

  • Ingen binding

Start tilbuddet

Unlimited

For dig som lytter og læser ubegrænset.

149 kr. /måned
  • 1 konto

  • Ubegrænset adgang

  • Eksklusivt indhold hver uge

  • Fri lytning til podcasts

  • Ingen binding

Start tilbuddet

Family

For dig som ønsker at dele historier med familien.

Fra 179 kr. /måned
  • 2-6 konti

  • 100 timer/måned pr. konto

  • Fri lytning til podcasts

  • Kun 39 kr. pr. ekstra konto

  • Ingen binding

2 konti

179 kr. /måned
Start tilbuddet

Flex

For dig som vil prøve Mofibo.

89 kr. /måned
  • 1 konto

  • 20 timer/måned

  • Gem op til 100 ubrugte timer

  • Eksklusivt indhold hver uge

  • Fri lytning til podcasts

  • Ingen binding

Prøv gratis