The James Webb Space Telescope Is Fueling Galactic Controversy
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Sep 18, 2023
The podcast explores the controversy surrounding the James Webb Space Telescope's images of early galaxies, challenging previous theories and sparking debate in the scientific community.
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insights INSIGHT
Looking Back in Time
Astronomers explore the universe's history by looking at faraway distances.
This is because light takes time to travel, so distant objects reveal the past.
insights INSIGHT
Unexpected Galaxy Formation
JWST images reveal galaxies formed earlier than expected, sparking debate.
These galaxies appear more structured and brighter, challenging existing models.
question_answer ANECDOTE
Galaxies as People
Galaxies, like people, have unique characteristics revealing their history.
JWST allows detailed study of distant galaxies, uncovering their growth and past.
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We're entering a new era of astrophysics. The James Webb Space Telescope is helping scientists test existing ideas and models of how the universe was created—on a whole new level. This telescope is sending back images of galaxies forming under a billion years after the Big Bang—way earlier than astronomers had previously expected. Not only that, scientists had anticipated that later—but still very early—galaxies would be small, barely formed blobs; instead, the galaxies in these images have spiral arms. So, today's show is all about GALACTIC CONTROVERSY! Computational astrophysicist Jorge Moreno talks with fellow astronomer and Short Wave's Scientist in Residence Regina G. Barber about how these new findings are stirring up controversy in the scientific community and the lessons we can learn from galaxies.
Questions or controversies? Email us at shortwave@npr.org.
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