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Turns out wireless networks aren't wireless at all. And light pulses in fiber optic cables carry your voice around the world. A new exhibition explains the science you hold in your hand every day.

Saturday, Dec. 9, 2023 at 10:30 p.m. on KPBS TV / Stream now with KPBS Passport! Explore Dr. Chopra's three-step plan to change lives and develop a higher vision for life. Learn how ancient wisdom traditions can merge with contemporary understandings in science to provide significant benefits to mental and physical health.

Dendrochronologists found that high temperatures in the 21st century make the current drought unprecedented compared to other dry periods around the Colorado River across the past 500 years.

Biomedical engineer Rachel Lance says British scientists submitted themselves to experiments that would be considered wildly unethical today in an effort to shore up the war effort.

Premieres Wednesday, Nov. 15, 2023 at 9 p.m. on KPBS TV / PBS App + Encores Sunday, Nov. 19 at 2 p.m. on KPBS TV and 9 p.m. on KPBS 2. Are scientists on the verge of a breakthrough in the fight against malaria, one of humanity's oldest and most devastating plagues? Follow researchers as they develop and test a promising new vaccine on a quest to save millions of lives.

The new regulations could save thousands of lives from deadly air pollution, according to the U.S. Environmental Protection Agency's calculations.

Modeled after pub quizzes in Ireland and the U.K., Geeks Who Drink is an authentic homegrown trivia quiz. It’s a great way to drink with friends, without burning brain cells. And it’s where useless knowledge means everything. Our quizzes cover everything from Hungary to "The Hunger Games," from science to sports, from the Billboard Hot 100 to "Better Call Saul." Each quiz consists of seven rounds of eight questions each, in a variety of formats, including audio and visual rounds. Teams can be up to six players, so bring your smartest friends (or some likable dummies)—or come solo. We can always help you join a team! No reservations needed, just show up! Winning teams get bar cash and other prizes, depending on the venue. Bonus questions sprinkled throughout the quiz will net you additional goodies. But mostly it’s about establishing your dominance—or at least pleasantly surprising yourself. You’re into that, right? Connect with Geeks Who Drink on Social Media! Facebook | Instagram | Twitter

More scientific evidence has surfaced to show that while Mittens may be your sweet angel, letting her roam outside is also a big threat to biodiversity.

Law enforcement groups are spending more than $160,000 against Monica Montgomery Steppe.

Portugal cut drug deaths by 80%, using free health care and addiction treatment. The U.S., meanwhile, focused on drug busts and tough crime laws. Overdose deaths keep rising catastrophically.