Why Does The Universe Look Like This?
History of the Universe・2 minutes read
Earth is located in the Milky Way galaxy, part of the Virgo supercluster within the Laniakea supercluster complex. Various theories and observations, from Copernicus' heliocentric model to dark matter's role in shaping large-scale structures, have contributed to our understanding of the universe's structure and evolution.
Insights
- Earth is situated within the Oort cloud in the Milky Way galaxy, part of the local Interstellar Cloud in the Orion arm, between Venus and Mars.
- The observable universe spans approximately 93 billion light years in diameter, showcasing structures challenging to define with current technology, while the cosmic microwave background radiation reinforces the Copernican principle by revealing temperature uniformity across space.
Get key ideas from YouTube videos. It’s free
Recent questions
What is the Milky Way galaxy's structure?
The Milky Way is a spiral galaxy with millions of stars rotating around a supermassive black hole at its center, spanning over 100,000 light years.
Related videos
Free School
The Milky Way for Children, Galaxies and Space: Astronomy for Kids - FreeSchool
Science Time
How Big is The Universe?
HISTORY
The Universe: Countless Wonders of the Milky Way (S2, E4) | Full Episode | History
TEDx Talks
Dark matter - what we're really made of | Michelle Thaller | TEDxBinghamtonUniversity
Space Matters
The REAL Movement of Earth Through the Galaxy