Gravitational lensing has found MACS1149-JD1, which was created less than 500 million years after the Big Bang, making it the most remote galaxy ever to be observed. 

Our universe came into being approx. 13.7 billion years ago with a Big Bang. 400 to 500 million years later, conditions in the cosmos allowed for the formation of the first stars but it was believed there was almost no hope of ever receiving a signal from any object of this time period; if there already were galaxies back then, their brightness would be far weaker than the light of a candle on the moon.
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