In today's episode, we explore the FDA's new COVID-19 vaccine guidelines, limiting access to those over 65 or with health risks. Discover the groundbreaking detection of gamma rays during lightning formation, offering new insights into atmospheric physics. Plus, learn about the world's first petahertz-speed phototransistor, a potential game-changer in computing technology. Join us for these stories and more on Simply News Radio.

Sources:
https://www.aha.org/news/headline/2025-05-20-fda-limit-covid-19-vaccine-people-over-65-others-high-risk-serious-illness
https://www.cidrap.umn.edu/covid-19/fda-significantly-limits-covid-19-vaccine-recommendations
https://www.fda.gov/media/186567/download
https://abcnews.go.com/Health/wireStory/trump-officials-set-new-requirements-covid-vaccines-healthy-121990192
https://www.sciencenews.org/article/gamma-ray-lightning-bolt-radiation
https://www.sciencealert.com/world-first-study-reveals-how-lightning-sparks-gamma-ray-flashes
https://www.sciencefocus.com/news/ancient-lightning-mystery
https://www.spacedaily.com/reports/When_lightning_leaders_collide_gamma_rays_burst_from_Earths_atmosphere_999.html
https://www.space.com/astronomy/earth/when-lightning-bolts-collide-do-they-unleash-powerful-gamma-ray-flashes
https://phys.org/news/2025-05-world-petahertz-phototransistor-ambient-conditions.html
https://www.controleng.com/petahertz-speed-phototransistor-in-ambient-conditions/
https://www.graphene-info.com/researchers-are-developing-petahertz-speed-phototransistors-ambient-conditions
https://lifeboat.com/blog/2025/05/researchers-are-developing-worlds-first-petahertz-speed-phototransistor-in-ambient-conditions
https://www.eurekalert.org/multimedia/1074014

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