astronomical observatories

The cutting-edge Webb Space Telescope has spotted the most distant black hole merger yet, which occurred when the universe was just 740 million years old. It’s the first time astronomers have seen a merger so early in the universe’s history, making it a record breaker.

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No space-based gravitational wave observatory exists…yet. But that hasn’t stopped a team of astronomers from demonstrating how the gravitational universe might look, using simulated data to create a “synthetic gravitational sky.”