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