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These two images of the Universe revealed the Cosmic Microwave Background to us and continue to provide amazing insights on how the universe formed. What we have learned is that the young Universe — before there were stars, planets or galaxies — was denser and much hotter, filled with a plasma of ionized hydrogen. Expansion resulted in the plasma and radiation cooling down, and the protons and electrons combined to form hydrogen atoms. While before it was opaque, it now became transparent and photons began to travel freely through space instead of being scattered by the earlier electrons and photons.
The Plank image gave us the most detailed map ever created of the cosmic microwave background, using over 15 months of data. The new image told us that the Universe is not the same in all directions, and so much more.
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Saima Baig
I am a Chartered Environmentalist from the Royal Society for the Environment, UK and co-owner of DoLocal Digital Marketing Agency Ltd, with a Master of Environmental Management from Yale University, an MBA in Finance, and a Bachelor of Science in Physics and Mathematics. I am passionate about science, history and environment and love to create content on these topics.
