The universe was born 13.7 billion years ago with the Big Bang. But what is the Big Bang and what was there before?
Scientists are starting to get an answer thanks to the time-travelling Planck mission.
ESA Euronews: Searching for the origins
The universe was born 13.7 billion years ago with the Big Bang. But what is the Big Bang and what was there before?
Scientists are starting to get an answer thanks to the time-travelling Planck mission.
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