HIV infects more than a million people every year worldwide. While decades of research have led to effective treatments and pre-exposure prophylactic (PrEP) drugs that have dramatically reduced the impact of HIV/AIDS epidemic, completely wiping the virus out has remained out of reach. Lenacapavir, a new twice-yearly PrEP injection, may be the solution. Two clinical trials this year showed the drug can offer near complete protection from HIV infection, and the long-lasting effects mean daily pills could be a thing of the past, as long as it is accessible to populations who need it most. Science journalist Jon Cohen, physician-scientist Linda-Gail Bekker, and biochemist Wesley Sundquist describe the history of HIV/AIDS prevention and the unique mechanism that led lenacapavir to be named the 2024 Breakthrough of the Year.
Read more about the Breakthrough of the Year: https://www.science.org/boty2024
Published: 12th Dec 2024 07:00:40 By: Science Magazine
Science News Video: How oil-eating #bacteria break droplets down #science #biology
Marine snow is the dead, discarded, and sloughed off organic matter that floats down to the sea floor like snowflakes. Originating from living organisms at the surface, then dropping down to the depths, it's an important part of how the ocean captures carbon from the atmosphere. However, by analyzing the sinking patterns of individual marine snowflakes, researchers found that their mucus trails slow their sinking speed, meaning this process captures carbon much slower than previously thought.
Published: 29th Nov 2024 05:00:08 By: Science Magazine
Science News Video: These #flatworms are soldiers in a war of #parasites
This flatworm species has the most extreme soldiers yet among parasites. When the nest of Haplorchis puilio is threatened, the soldiers crawl up to the foreign trematodes, attach their mouths, and expand their throats. The resulting vacuum blows a hole in the larger parasites, allowing the soldiers to suck out their guts.
Video by: Sierra Boucher/Science
Footage: Daniel Metz
Music: Chris Burns/Science
Published: 22nd Nov 2024 05:00:10 By: Science Magazine
Science News Video: These seals are mapping their changing habitat
Northern elephant seals are invaluable partners in oceanographic research. By mounting sophisticated sensors on these large, round marine mammals, scientists gather crucial data on hard-to-access marine ecosystems.
00:00 Intro to UC Santa Cruz northern elephant seal research program
01:21 Monitoring seal health and foraging
02:03 Seals as smart sensors
03:14 Instruments to observe seal habitat
05:06 Studying foraging behavior
06:04 Sonar tags to detect prey
06:54 Whisker analysis
07:59 New technologies and re-analyzing old data
Additional footage credit: The David and Lucile Packard Foundation
#climatechange #ecology
Published: 11th Nov 2024 02:00:06 By: Science Magazine
Science News Video: The 10 Weirdest Ways Animals Have Sex
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Humans may think we have the market cornered on bizarre sexual acts, but the animal kingdom has come up with some mating rituals that put us to shame.
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Published: 25th Dec 2024 05:00:25 By: SciShow
Science News Video: Did Neanderthals Make You A Morning Person?
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We've known for a while now that Neanderthals and humans interbred and swapped genes. But do you know what traits you have that came from your Neanderthal cousins? From early rising to immune boosting, here are a few traits that you may have gotten from another species, and one that we know that you didn't.
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Published: 24th Dec 2024 05:00:07 By: SciShow
Science News Video: How Science Fights Fake Food Scams
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In 2023, Italian and Spanish authorities busted a major counterfeiting ring. Their product? Olive oil. From fake caviar and scallops to imitation maple syrup, there are a lot of pricey foods that fraudsters love to fake. Here's how authorities use science to catch the fakes before they hit your dinner table.
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Published: 23rd Dec 2024 05:00:40 By: SciShow
Science News Video: Are Energy-Efficient Windows Bad For Us?
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Low-E windows have reduced the amount of energy required to heat and cool our buildings, a critical step in fighting climate change. But new research suggests we've lost something beneficial in the process.
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Published: 20th Dec 2024 05:00:32 By: SciShow
Science News Video: Why We've Only Cured HIV Seven Times
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As of 2024, exactly seven people have been cured of HIV, most recently the "next Berlin patient." Why aren't we sharing this cure with everyone living with HIV? It's complicated.
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Published: 19th Dec 2024 05:00:07 By: SciShow
Science News Video: See a vampire bat treadmill workout | Science News
Researchers put vampire bats through their paces to discover what fuels their metabolism. After a fine meal of cow blood, bats were put into a closed mini-gym with a moving floor. As the bats walked and then — as the treadmill sped up — ran, researchers checked bat breath for signs that amino acids from the cow blood were getting metabolized in the workout. Unlike most mammals burning carbs and fats during exercise, bats metabolize more amino acids.
Read more: https://www.sciencenews.org/article/vampire-bats-treadmills-metabolism
Video Credit: Giulia Rossi
Published: 6th Nov 2024 04:39:39 By: Science News
Science News Video: See how a male Victoria’s riflebird courts a female | Science News
A sit-and-wait flirter, a male riflebird (left in the first clip) puts on a high-energy — and noisy — show for a female visiting his perch. The most flexible wrist joints yet measured in a bird let him curve his dark wings like a flaring cape. Opening and closing his beak, as seen in the first slow motion clip, adds flashes of gold from the mouth and throat lining. Between flashes, he closes his beak to scrape it over the spread feathers for the show’s thwackity-thwack soundtrack, as seen in the second slow motion clip. Scientists previously thought the birds somehow clapped their wings together to make the sounds.
Video: Thomas MacGillavry and Joris De Raedt
Published: 16th Oct 2024 03:27:53 By: Science News
Science News Video: Take a close look at a fruit fly's neurons | Science News
In this fruit fly brain, there are precisely two neurons called CT1 neurons that span the width of the eye. Each of these neurons makes over 140,000 synapses and uses its unique position to help the fly sense light and motion.
Read more:
Video: Amy Sterling, Murthy and Seung Labs/Princeton University
Published: 2nd Oct 2024 01:53:07 By: Science News
Science News Video: Watch bacteria found on our teeth rapidly divide and grow | Science News
The filamentous bacterium Corynebacterium matruchotii, found in human dental plaque, has a superpower. It can divide into as many as 14 daughter cells at once, allowing it to rapidly expand its territory. In this video, a single cell divides into many, which also divide into many, and so on until the colony rapidly fills the field of view.
Read more: https://www.sciencenews.org/article/bacteria-unique-mouth-division
Video: Scott Chimileski/Marine Biological Laboratory
This animation shows how the ambipolar electric field works. The most abundant gas in the lower atmosphere, the part we live in, is nitrogen (N2, shown around seven seconds). Pan up to the ionosphere (14 seconds), though, and you’ll find more atomic oxygen. Photons from the sun can collide with oxygen and knock one of their electrons loose, leaving a positively charged oxygen ion behind. The pull between those ions and their lost electrons is the ambipolar electric field, which ties them together.
Read more: https://www.sciencenews.org/article/electric-field-in-earths-atmosphere
Video: NASA's Goddard Space Flight Center
Explore how custom steering wheels are crafted and how apple pies are mass-produced.
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Published: 24th Dec 2024 04:00:40 By: Science Channel
Science Channel Video: Watching These Weld Fixtures Form is Mesmerizing 😮 | How It’s Made | Science Channel
Astronomers have been exploring the alien planets of our solar system for the last 50 years ... but could it be hiding another secret?
#ScienceChannel #SpacesDeepestSecrets
About Space's Deepest Secrets
A few generations ago, traveling to the Moon was hard to imagine, and going beyond the Moon was a pipe dream. Today there is a new breed of explorer, tasked with going deep into space to unlock and reveal first-ever views of alien worlds and cosmic bodies far beyond anyone's imagination. These men and women have pushed their ingenuity and curiosity beyond the limits to uncover some of the most-groundbreaking findings in the history of space exploration.
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Published: 23rd Dec 2024 04:00:33 By: Science Channel
Science Channel Video: Nazi Germany's WWII Bakery | Mysteries of the Abandoned | Science Channel
The SS Bakery in Germany, outside of Sachsenhausen concentration camp, was not only where prisoners were forced to bake their own rations, but also to feed the swelling SS ranks in during World War II. #ScienceChannel #MysteriesOfTheAbandoned
About Mysteries of the Abandoned:
The world's most incredible engineering projects are revisited to uncover why places full of mysteries and untold secrets are now abandoned ruins.
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Published: 20th Dec 2024 05:00:28 By: Science Channel
Science Channel Video: Is This How the Kushite Pyramids Were Built? | Unearthed | Science Channel
Fri, 20 Dec 2024 13:15:00 GMT A new study from the U.C. Davis and UW-Eau Claire found that California ground squirrels not only eat nuts and fruit, but also hunt and eat voles in the summer months, which are small mouse-like ...
Fri, 20 Dec 2024 10:00:00 GMT Science News drew millions of visitors to our website this year. Here’s a recap of the most-read and most-watched news stories of 2024.
Thu, 19 Dec 2024 05:00:00 GMT Science News has been publishing award-winning science ... and consider how many lines of evidence support the conclusions. Research studies are often evaluated by other scientists to determine ...
Wed, 18 Dec 2024 13:06:00 GMT Archaeologists uncovered a nearly 1,800-year-old amulet that offers new insight into the early spread of Christianity across the Roman Empire.
Tue, 17 Dec 2024 14:09:00 GMT A new National Academies report reviews scientific evidence on the relationship between moderate alcohol consumption and health outcomes to inform the next edition of the Dietary Guidelines for ...