Published: Nov. 7, 2022

galaxies photographed by the James Webb Telescope

Much of the world was awestruck when NASA published the first images from the James Webb Space Telescope, the world’s largest and most powerful space telescope.

Erica Nelson, CU Boulder astrophysical and planetary sciences assistant professor, is part of several programs that are spending more than 1,000 hours on the telescope, including about 700 on its main infrared camera. “We are seeing galaxies which formed at much earlier times than we previously thought possible that may pose a threat to what we thought we understood about the universe on the grandest scales,” she said.

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Photo by Space Telescope Science Institute