FDA Alters Vaccine Guidelines, Gamma Rays in Lightning, and Breakthrough in Computing Speed

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