57.9 MB (2.1 MB compressed)
4500 x 4500 pixels
38.1 x 38.1 cm ⏐ 15.0 x 15.0 in (300dpi)
GREGOIRE CIRADE / SCIENCE PHOTO LIBRARY GREGOIRE CIRADE / SCIENCE PHOTO LIBRARY
Expanding universe. Illustration showing the universe expanding over time (red arrows) from the Big Bang (lower centre). Matter formed after the Big Bang, the initial expansion of the universe from an infinitely compact state 13.8 billion years ago. Around 100 million years after the Big Bang, the first stars and galaxies formed. On the largest scale, the galaxies are observed to be moving away from each other. This is due to the expansion of the universe.
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