Could JWST Solve One of Cosmology's Greatest Mysteries?
The telescope's studies could help end a long-standing disagreement over the rate of cosmic expansion. But scientists say more measurements are needed
![Could JWST Solve One of Cosmology's Greatest Mysteries?](https://static.scientificamerican.com/dam/m/272bba0ad5080efb/original/potw1550a-1.jpg?w=1200)
The telescope's studies could help end a long-standing disagreement over the rate of cosmic expansion. But scientists say more measurements are needed
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