“We can actually detect the heat of a bumblebee if it was flying around on the surface of the moon—that's how sensitive this telescope is.” 🎥 Watch our short documentary on JWST, the most powerful space telescope ever made:
This is the picture we've all been waiting for the deepest image of the cosmos ever captured. Humanity has never seen so far back and so clearly into the depths of the universe's history. The multitudes of nameless galaxies you see here emitted their light more than 13 billion years ago, mere cosmic moments after the Big Bang.
How did you go from nothing to galaxies? Something must have happened, but we can't see into that period. It's designed to peer into a part of the universe we have never seen before--the so-called dark ages, when everything must have happened, when the first galaxies came to existence, the first stars came into life, the first black holes appeared.Over time, as the space time continuum stretched with the expansion of the universe, the light itself was stretched.
So the only way we could do this is each segment. We actually had to polish it incorrectly. What we did was we published it perfectly at room temperature. We called all the way down. It would then bend and twist. We'd measure all those bends and twists very carefully, warm it back up, and then polish in all those errors so that when it cooled down again, it cool to exactly the right shape.
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