EverythingScience

2022-11-24 18:10:50 Ultra-high-resolution MRI reveals migraine brain changes

For the first time, a new study has identified enlarged perivascular spaces in the brains of migraine sufferers.

"In people with chronic migraine and episodic migraine without aura, there are significant changes in the perivascular spaces of a brain region called the centrum semiovale," said study co-author Wilson Xu. "These changes have never been reported before."

"Studying how they contribute to migraine could help us better understand the complexities of how migraines occur."

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2022-11-23 19:01:12 Rapidly Melting Glaciers Are Releasing a Staggering Payload of Unknown Bacteria

Fast-melting glaciers are releasing staggering amounts of bacteria into rivers and streams, which could transform icy ecosystems, scientists warn.

In a study of glacial runoff from 10 sites across the Northern Hemisphere, researchers have estimated that continued global warming over the next 80 years could release hundreds of thousands of tonnes of bacteria into environments downstream of receding glaciers.

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2022-11-23 12:01:23 James Webb Space Telescope reveals an exoplanet atmosphere as never seen before

The James Webb Space Telescope (JWST) has just scored another first: a detailed molecular and chemical portrait of a distant world's skies.

The telescope's array of highly sensitive instruments was trained on the atmosphere of a "hot Saturn"—a planet about as massive as Saturn orbiting a star some 700 light-years away—known as WASP-39 b. While JWST and other space telescopes, including Hubble and Spitzer, have previously revealed isolated ingredients of this broiling planet's atmosphere, the new readings provide a full menu of atoms, molecules, and even signs of active chemistry and clouds...

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2022-11-22 18:10:38 The Cause of Alzheimer's Could Be Coming From Inside Your Mouth

In recent years, a growing number of scientific studies have backed an alarming hypothesis: Alzheimer's disease isn't just a disease, it's an infection.

While the exact mechanisms of this infection are something researchers are still trying to isolate, numerous studies suggest the deadly spread of Alzheimer's goes way beyond what we used to think.

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2022-11-21 19:55:44 Earth now weighs six ronnagrams: New metric prefixes voted in

A yottabyte is a one followed by 24 zeroes.

But even the mighty yotta is not enough to handle the world's voracious appetite for data, according to Richard Brown, the head of metrology at the UK's National Physical Laboratory.

"In terms of expressing data in yottabytes, which is the highest prefix currently, we're very close to the limit," Brown told AFP...

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2022-11-20 12:00:41 One of Orion’s cameras has captured the Moon for the first time as it journeys to Earth’s satellite!
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2022-11-19 19:01:19 NASA Awards SpaceX Second Contract Option for Artemis Moon Landing

“Returning astronauts to the Moon to learn, live, and work is a bold endeavor. With multiple planned landers, from SpaceX and future partners, NASA will be better positioned to accomplish the missions of tomorrow: conducting more science on the surface of the Moon than ever before and preparing for crewed missions to Mars,” said NASA Administrator Bill Nelson.

“Continuing our collaborative efforts with SpaceX through Option B furthers our resilient plans for regular crewed transportation to the lunar surface and establishing a long-term human presence under Artemis,” said Lisa Watson-Morgan, manager for the Human Landing System.

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2022-11-19 14:01:40 The Oldest Evidence of Ancient Humans Cooking With Fire Was Just Found
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2022-11-19 12:00:21 This is Orion as it moves its Solar Arrays before the Perigee Raise Maneuver. Timelapse at 2000%.
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2022-11-19 10:01:59 Solving brain dynamics gives rise to flexible machine-learning models

Last year, MIT researchers announced that they had built "liquid" neural networks, inspired by the brains of small species: a class of flexible, robust machine learning models that learn on the job and can adapt to changing conditions, for real-world safety-critical tasks, like driving and flying. The flexibility of these "liquid" neural nets meant boosting the bloodline to our connected world, yielding better decision-making for many tasks involving time-series data, such as brain and heart monitoring, weather forecasting, and stock pricing.

But these models become computationally expensive as their number of neurons and synapses increase and require clunky computer programs to solve their underlying, complicated math. And all of this math, similar to many physical phenomena, becomes harder to solve with size, meaning computing lots of small steps to arrive at a solution.

Now, the same team of scientists has discovered a way to alleviate this bottleneck...

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