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#nasauniverse #pretendtobeatimetraveler

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Telescopes help us look back in time — the farther the object, the longer its light takes to reach us! You can #PretendToBeATimeTraveler with @NASAWebb as it collects light from 13.5 billion years ago, when the first stars and galaxies were forming: go.nasa.gov/32ZCHAv
#NASAUniverse

Early Universe - Webb/NASA

After the Big Bang, the universe was like a hot soup of particles (i.e. protons, neutrons, and electrons). When the universe started cooling, the protons and neutrons began combining into ionized atoms of hydrogen (and eventually some helium).
go.nasa.gov
#nasauniverse #pretendtobeatimetraveler

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