Science

A white spacecraft, lightly toasted like a marshmallow and smelling of singed metal, fell out of the night sky early on Sunday morning and splashed down in the Gulf of Mexico not all that far from Key West.

The darkened waters there were carefully chosen from among dozens of potential landing spots near Florida. This is because the wind and seas were predicted to be especially calm and serene as the Crew Dragon spacecraft named Resilience floated down to the sea and bobbed gently, awaiting the arrival of a recovery ship.

Mark, a 64-year-old with amyotrophic lateral sclerosis, or ALS, uses Amazon Alexa all the time using his voice. But now, thanks to a brain implant, he can also control the virtual assistant with his mind.

ALS affects the nerve cells in the brain and spinal cord, causing loss of muscle control over time. Mark, who asked that his last name not be used, has limited mobility as a result of his condition. He can walk and talk but has no use of his arms and hands. As part of a clinical trial, he received a brain-computer interface, or BCI, made by startup Synchron in August 2023.

The original version ofthis storyappeared in Quanta Magazine.

To understand the universe, scientists look to its outliers. “You always want to know about the extreme cases—the special cases that lie at the edge,” said Carsten Gundlach, a mathematical physicist at the University of Southampton.

Black holes are the enigmatic extremes of the cosmos. Within them, matter is packed so tightly that, according to Einstein’s general theory of relativity, nothing can escape. For decades, physicists and mathematicians have used them to probe the limits of their ideas about gravity, space, and time.

Old robots never die, they simply fade away. (And probably rust a bit.) This week, Boston Dynamics said adieu to HD Atlas, the human-ish robot that debuted over a decade ago. And then promptly introduced its replacement.

For years, Atlas has scared us silly with cutesy dance moves and parkour flips that we just knew would one day lead to our annihilation as a species. The robopocalypse never came, of course, and Atlas just got cuter the more it fell off boxes, bounced off tables, rolled down grass hills, and jived to Dirty Dancing tracks.

The original version ofthis storyappeared inQuanta Magazine.

In recent decades, neuroscience has seen some stunning advances, and yet a critical part of the brain remains a mystery. I am referring to the cerebellum, so named for the Latin for “little brain,” which is situated like a bun at the back of the brain. This is no small oversight: The cerebellum contains three-quarters of all the brain’s neurons, which are organized in an almost crystalline arrangement, in contrast to the tangled thicket of neurons found elsewhere.

Afshin Mehin has become the go-to designer for companies working on devices that aim to tap into or modulate the brain. The creative agency he founded, San Francisco–based Card79, has worked with Elon Musk’s Neuralink to design a surgical robot for installing a coin-sized implant into people’s heads. The device, known as a brain-computer interface, records and transmits brain activity with the goal of enabling paralyzed people to control a computer.

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As a mom of three boys, I can barely hear my thoughts against the cacophony of my brood plotting their next Minecraft moves, bartering Pokémon cards, or singing a Weird Al parody. They’re not fighting or wreaking havoc, but life with three energetic school-aged kids is, well, noisy … and I’m noise sensitive.

Every night, I—like millions of others—put on a noise machine to help me sleep. Mine offers several types of noise: white, pink, green, and brown. I’ve noticed something strange, though. After about 30 minutes of the noise pumping into my head, I start to hear things. Sometimes it’s music, like a full orchestral score. Other times it’s people having a conversation just out of the range where I’d hear actual words. Occasionally, it sounds like my husband playing a video game.

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When medical student Alyssa Murillo stepped into surgery, she was met with something most wouldn’t expect to find in an operating room: a towering surgical robot. She wasn’t there to observe the kind of surgeries she was used to seeing; instead she was getting an in-depth view inside the patient’s body through the robot’s video console.

At an old biscuit factory in South London, giant mixers and industrial ovens have been replaced by robotic arms, incubators, and DNA sequencing machines. James Field and his company LabGenius aren’t making sweet treats; they’re cooking up a revolutionary, AI-powered approach to engineering new medical antibodies.

In nature, antibodies are the body’s response to disease and serve as the immune system’s front-line troops. They’re strands of protein that are specially shaped to stick to foreign invaders so that they can be flushed from the system. Since the 1980s, pharmaceutical companies have been making synthetic antibodies to treat diseases like cancer, and to reduce the chance of transplanted organs being rejected.