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When
Stuff Happened
Galaxies are Born
Expanding Universe
13.4 Billion Years Ago
Verified. Empirically supported and rationally deduced.
Astronomy
Timeline
Chapter 1 Quote Attribution Clarification
Sagan, Tyson, et al!
Astronomy
Timeline
Doppler Effect Observed for Stars
Light Waves
1848
Astronomy
Timeline
Second Atmosphere: Carbon Dioxide & Nitrogen
Atmospheric Evolution
4.3 Billion Years Ago
4.5 to 4 Billion Years Ago
Astronomy
Timeline
Galileo Galilei
- Father of Modern Physics
Observational Empiricism
born 1564.
Lived from 1564 to 1642, aged 77.
Astronomy
Timeline
Snowball Earth: When Ice Reached the Equator
Evolution
From 717 million years ago through 635.
Cause: Continental Drift, Falling CO₂
Astronomy
Timeline
Doppler Effect for Sound and Light
Waves
1842
Astronomy
Timeline
Pangaea Splitting Starts Splitting Evolution
Evolution
180 Million years ago (+/- 5 million)
Pangaea Super Continent Breakup
Astronomy
Timeline