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submitted 11 hours ago by jeffw@lemmy.world to c/science@lemmy.world
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Sources, a few more items and relevant Wikipedia articles are in 2024 in science.

Now making these quarterly instead of monthly (posted most of the previous ones only to reddit). I’m making these summaries so you can stay up to date with the latest science even if you only have little time. Also updating Wikipedia articles sooner or later.

You can get a quarterly email notification here. Non-included items and criteria can be found here.

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submitted 22 hours ago by Bebo@literature.cafe to c/science@lemmy.world

This study has identified the anterior cingulate cortex (ACC) as a key area in the brain responsible for sensory hypersensitivity in autism spectrum disorders. Utilizing a mouse model with a Grin2b gene mutation, heightened neural activity and connectivity in the ACC was observed. Suppressing this hyperactivity normalized the sensory hypersensitivity, offering new insights into treatment options

https://www.nature.com/articles/s41380-024-02572-y (open access)

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submitted 3 days ago by m3t00@lemmy.world to c/science@lemmy.world

not long

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submitted 3 days ago by m3t00@lemmy.world to c/science@lemmy.world

They spend trillions on secret ops. Glad the best are on our side, i guess

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submitted 3 days ago by m3t00@lemmy.world to c/science@lemmy.world
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submitted 5 days ago by m3t00@lemmy.world to c/science@lemmy.world
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submitted 6 days ago by floofloof@lemmy.ca to c/science@lemmy.world
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submitted 6 days ago by jeffw@lemmy.world to c/science@lemmy.world
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They’re six-legged, hairy home invaders that just won’t die, no matter how hard you try.

Cockroaches are experts at surviving indoors, hiding in kitchen pipes or musty drawers. But they didn’t start out that way.

new study uses genetics to chart cockroaches’ spread across the globe, from humble beginnings in southeast Asia to Europe and beyond. The findings span thousands of years of cockroach history and suggest the pests may have scuttled across the globe by hitching a ride with another species: people. 

“It’s not just an insect story,” said Stephen Richards, an assistant professor at Baylor College of Medicine who studies insect genes and was not involved with the study. “It’s an insect and humanity story.”

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"Love is as varied as people are."

~Magnus Hirschfeld (date unknown)

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The mission, known as NS-25, sent six people on a brief trip to suborbital space today (May 19).

Blue Origin's nearly two-year human spaceflight drought is over.

Jeff Bezos' aerospace company launched its NS-25 mission today (May 19), sending six people — including the United States' first-ever Black astronaut candidate — on a brief trip to suborbital space aboard its New Shepard rocket-capsule combo.

It was Blue Origin's first space tourism launch since August 2022. That previous mission went well, but the company's next flight, an uncrewed research jaunt that launched a month later, did not: New Shepard suffered a serious anomaly, causing the destruction of the first-stage booster. (The capsule landed safely under parachutes.)  

New Shepard was grounded for more than a year while Blue Origin investigated the September 2022 accident, which the company eventually traced to a thermo-structural failure in the nozzle of the rocket's single engine. The vehicle returned to action this past December on an uncrewed flight and is now fully back, with another human mission under its belt.

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Spider silk sound system (www.eurekalert.org)
submitted 1 week ago by rycee@lemmy.world to c/science@lemmy.world
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I guess you already knew since your phone is working.

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Brain-machine interfaces implanted in the participants of this study in the supramarginal gyrus (SMG) and primary somatosensory cortex (S1) were successfully able to decode both internally spoken and vocalized words.

https://www.nature.com/articles/s41562-024-01867-y?utm_source=Live+Audience&utm_campaign=1586f44658-nature-briefing-daily-20240514&utm_medium=email&utm_term=0_b27a691814-1586f44658-52006460 (open access)

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This study performed lineage tracing of live human embryos from the first cleavage division until the blastocyst stage and discovered that the majority of cells in the EPI, the future human body, originate from one of the two cells in most embryos. The first blastomere to divide at the 2-cell stage has a higher likelihood to generate the first, and more, internalized cells at the 8-to-16-cell stage.

https://www.cell.com/cell/fulltext/S0092-8674(24)00455-0?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0092867424004550%3Fshowall%3Dtrue (open access)

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Speculoos-3b, 55 light years away, is only second planetary system to be found around an ultra-cool red dwarf

Astronomers have discovered a new Earth-sized planet orbiting a small, cool star that is expected to shine for 100 times longer than the sun.

The rocky world, called Speculoos-3b, is 55 light years from Earth and was detected as it passed in front of its host star, an ultra-cool red dwarf that is half as hot as the sun and 100 times less luminous.

The newly discovered world, described as “practically the same size as our planet”, swings around the red dwarf once every 17 hours, making a year on the planet shorter than a single Earth day.

But while the years are short on Speculoos-3b, the days and nights are never-ending. “We believe that the planet rotates synchronously, so that the same side, called the day side, always faces the star, just like the moon does for the Earth. On the other hand, the night side hand, would be locked in endless darkness,” said Michaël Gillon, an astronomer at the University of Liège in Belgium and lead author on the study.

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