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Lab tests show THC potency inflated on retail marijuana in Colorado
An analysis of 23 cannabis samples from 10 dispensaries found a majority had at least 30% less THC than they were reported to have.Zenkyphoto/iStock via Getty Images PlusCannabis flower sold in...
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Thin, bacteria-coated fibers could lead to self-healing concrete that fills...
Cracked roads and sidewalks generate big costs for cities. AP Photo/Marcio Jose SanchezSome say there are two types of concrete – cracked and on the brink of cracking. But what if when concrete...
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What’s in tattoo ink? My team’s chemical analysis found ingredients that...
Tattoo ink ingredients don't always match what's labeled on the bottle. AP Photo/Desmond BoylanTattoos are an incredibly common form of permanent self-expression that date back thousands of years. Most...
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An eclipse for everyone – how visually impaired students can ‘get a feel for’...
A solar eclipse approaching totality. AP Photo/Richard Vogel, FileMany people in the U.S. will have an opportunity to witness nearly four minutes of a total solar eclipse on Monday, April 8, 2024, as...
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Generative AI could leave users holding the bag for copyright violations
How can users of AI tools like OpenAI's Sora video generator be sure they aren't producing copyright-violating content?Drew Angerer/AFP via Getty ImagesGenerative artificial intelligence has been...
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TikTok’s duet, green screen and stitch turn political point-scoring into an...
TikTok's features for combining users' videos lend themselves to political disputes.Quick et al, CC BY-NC-SASince its astronomical rise in popularity during the 2020 COVID-19 lockdowns, TikTok has...
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How AI and a popular card game can help engineers predict catastrophic...
Can you find a matching set?Cmglee/Wikimedia Commons, CC BY-SAHumans are very good at spotting patterns, or repeating features people can recognize. For instance, ancient Polynesians navigated across...
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Horses lived in the Americas for millions of years – new research helps...
People have collected fossil horses throughout North America for centuries.Florida Museum/Mary WarrickMany people assume that horses first came to the Americas when Spanish explorers brought them here...
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Cancer often requires more than one treatment − an oncologist explains why...
Some cancer patients receive additional treatment after surgery with the goal of eliminating any remaining tumor cells.BSIP/Collection Mix: Subjects via Getty ImagesWhen Kate Middleton, the princess of...
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Bridges can be protected from ship collisions – an expert on structures in...
A cargo ship hit the Sunshine Skyway Bridge over Florida's Tampa Bay in 1980, collapsing one span and killing 35 people.AP Photo/Jackie GreenThe MV Dali, a 984-foot, 100,000-ton cargo ship, rammed into...
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NASA’s mission to an ice-covered moon will contain a message between water...
An illustration of the Europa Clipper spacecraft, which will head to Jupiter's moon Europa. NASA/JPL-CaltechNASA’s Europa Clipper spacecraft, headed to Jupiter’s ice-covered moon Europa in October...
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Exploding stars are rare but emit torrents of radiation − if one happened...
Massive dying stars emit large amounts of radiation. NASA/ESA/Hubble SM4 ERO Team via APStars like the Sun are remarkably constant. They vary in brightness by only 0.1% over years and decades, thanks...
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What is Volt Typhoon? A cybersecurity expert explains the Chinese hackers...
U.S.-China antagonism is particularly acute in the realm of hacking and cybersecurity.AP Photo/Kiichiro SatoVolt Typhoon is a Chinese state-sponsored hacker group. The United States government and its...
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DNA says you’re related to a Viking, a medieval German Jew or a 1700s...
A genetic match to an ancient person doesn't mean you're more related genealogically.Mark Edward Atkinson/Tetra Images via Getty ImagesIn 2022, we reported the DNA sequences of 33 medieval people...
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Heart rate zones aren’t a perfect measure of exercise intensity, but...
Regardless of the intensity of exercise you prefer, keeping a consistent routine can keep your heart healthy.Klaus Vedfelt/DigitalVision via Getty ImagesAerobic exercise like jogging, biking, swimming...
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Undersea cables are the unseen backbone of the global internet
Special ships lay data cables across the world's oceans.Stefan Sauer/picture alliance via Getty ImagesHave you ever wondered how an email sent from New York arrives in Sydney in mere seconds, or how...
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Looking to photograph a solar eclipse with your smartphone? Try these...
You don't need a nice professional camera to snap photos of this year's eclipse. George Frey via Getty Images NewsAs the Moon casts its shadow across the Earth during the upcoming solar eclipse,...
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China’s universities just grabbed 8 of the top 10 spots in one worldwide...
Chinese universities are prodigious producers of scientific papers, which will help garner them more prestige.CFOTO/Future Publishing via Getty ImagesUniversity leaders pay close attention to...
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China’s universities just grabbed 6 of the top 10 spots in one worldwide...
Chinese universities are prodigious producers of scientific papers, which will help garner them more prestige.CFOTO/Future Publishing via Getty ImagesUniversity leaders pay close attention to...
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Even hands-free, phones and their apps cause dangerously distracted driving
Car infotainment systems are getting ever more sophisticated.AP Photo/Ryan SunDo you ever use your cellphone while driving? Don’t feel too guilty about saying yes – nearly 60% of drivers admit to using...
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