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17 de ene. de 2017 · Origins of the universe, explained. The most popular theory of our universe's origin centers on a cosmic cataclysm unmatched in all of history—the big bang. By Michael Greshko and National...
- 6 min
- Michael Greshko,National Geographic Staff
12 de ago. de 2014 · 11 August 2014. How was the Universe created? What created all the planets, stars and galaxies? BBC Future presents a four-minute animated guide to one of the greatest questions we’ve tried to...
The origin, evolution, and nature of the universe have fascinated and confounded humankind for centuries. New ideas and major discoveries made during the 20th century transformed cosmology – the term for the way we conceptualize and study the universe – although much remains unknown.
Overview. The origin, evolution, and nature of the universe have fascinated and confounded humankind for centuries. New ideas and major discoveries made during the 20th century transformed cosmology – the term for the way we conceptualize and study the universe – although much remains unknown. Learn more.
21 de may. de 2013 · The universe of 100 years ago was simple: eternal, unchanging, consisting of a single galaxy, containing a few million visible stars. The picture today is more complete and much richer. The...
6 de may. de 2024 · The Short Answer: The big bang is how astronomers explain the way the universe began. It is the idea that the universe began as just a single point, then expanded and stretched to grow as large as it is right now—and it is still stretching! What's This Big Bang All About? In 1927, an astronomer named Georges Lemaître had a big idea.
22 de jul. de 2021 · Present observations suggest that the first stars formed from clouds of gas around 150–200 million years after the Big Bang. Heavier atoms such as carbon, oxygen and iron, have since been continuously produced in the hearts of stars and catapulted throughout the universe in spectacular stellar explosions called supernovae.
