Explore How the Cosmos Began
Eight medium‑level questions about the origin of the universe and its initial structures.
Quiz Questions
Answer all questions below and test your knowledge.
- 1
Which event marks the origin of space‑time about 13.8 billion years ago?
- 2
During which epoch did the universe expand exponentially faster than light could travel?
- 3
Which light element was produced in significant amounts during the first three minutes of cosmic history?
- 4
What is the current measured temperature of the cosmic microwave background radiation?
- 5
What structures first collapsed under gravity after photons decoupled from matter?
- 6
Which observation first revealed that distant galaxies are moving away from us?
- 7
Which theory accounts for the remarkable uniformity of the microwave background across the sky?
- 8
What epoch is characterized by electrons binding to nuclei to form neutral atoms?
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