Across
- 3. microwave radiation permeating the universe, representing the earliest light
- 4. A mysterious force driving the accelerated expansion of the universe.
- 6. The smallest unit of ordinary matter, forming after the universe cooled.
- 9. The property of the universe looking the same in every direction.
- 11. come together to form one mass or whole.
- 16. A neutral subatomic particle, crucial for creating light elements.
- 18. The era when electrons bound to nuclei, making the universe transparent.
- 19. A hot, ionized gas state of matter that filled the early universe.
- 20. a hypothetical future point when artificial intelligence surpasses human intelligence, leading to uncontrollable, exponential technological growth
Down
- 1. the cosmic formation of atoms more complex than the hydrogen atom.
- 2. the displacement of spectral lines toward longer wavelengths (the red end of the spectrum) in radiation from distant galaxies and celestial objects. This is interpreted as a Doppler shift that is proportional to the velocity of recession and thus to distance.
- 5. the action of becoming larger or more extensive.
- 7. Invisible matter that does not emit light but exerts gravitational influence.
- 8. the leading explanation for the origin of the universe 13.8 billion years ago
- 10. A negatively charged particle that paired with protons to form atoms during recombination.
- 12. The fundamental force pulling matter together, acting against expansion
- 13. A stable subatomic particle with positive charge, formed early on.
- 14. A measure of disorder, which has increased since the Big Bang.
- 15. The observation that galaxies farther away move faster, confirming expansion.
- 17. the action of inflating something or the condition of being inflated.