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Jun 21, 2019

Astronomers Discover Cool Halo Gas Spinning Like Galactic Disks

Posted by in categories: energy, space

A group of astronomers led by Crystal Martin and Stephanie Ho of the University of California, Santa Barbara, has discovered a dizzying cosmic choreography among typical star-forming galaxies; their cool halo gas appears to be in step with the galactic disks, spinning in the same direction.

The researchers used W. M. Keck Observatory to obtain the first-ever direct observational evidence showing that corotating halo gas is not only possible, but common. Their findings suggest that the whirling gas halo will eventually spiral in towards the disk.

“This is a major breakthrough in understanding how galactic disks grow,” said Martin, Professor of Physics at UC Santa Barbara and lead author of the study. “Galaxies are surrounded by massive reservoirs of gas that extend far beyond the visible portions of galaxies. Until now, it has remained a mystery how exactly this material is transported to galactic disks where it can fuel the next generation of star formation.”

Jun 21, 2019

Positive Results from Urolithin A Human Trial

Posted by in category: life extension

In a small, recent human trial, a naturally occurring compound called urolithin A has yielded positive results and appears to slow down part of the aging process that is related to the production of energy in our cells.

What is urolithin A?

Urolithin A is the end product created when bacteria in the gut break down ellagitannins, which are polyphenols found in fruits such as pomegranates, strawberries, walnuts, and raspberries. The substance does not appear naturally in its end form, so we normally rely on the beneficial bacteria in the microbiome, our internal ecology of gut bacteria, to convert the polyphenols into urolithin A.

Jun 21, 2019

Machine Learning: Living in the Age of AI | A WIRED Film

Posted by in categories: entertainment, robotics/AI

“Machine Learning: Living in the Age of AI,” examines the extraordinary ways in which people are interacting with AI today. Hobbyists and teenagers are now developing tech powered by machine learning and WIRED shows the impacts of AI on schoolchildren and farmers and senior citizens, as well as looking at the implications that rapidly accelerating technology can have. The film was directed by filmmaker Chris Cannucciari, produced by WIRED, and supported by McCann Worldgroup.

Jun 21, 2019

Two potentially life-friendly planets found orbiting a nearby star

Posted by in category: alien life

“Both Teegarden’s planets are potentially habitable,” says Ignasi Ribas of the Institute of Space Studies of Catalonia, a member of the team reporting the planets today in the journal Astronomy & Astrophysics. “We will eventually see if they are actually habitable and, perhaps, even inhabited.”

The two worlds orbit a star so faint that it wasn’t even spotted until 2003, when NASA astrophysicist Bonnard Teegarden was mining astronomical data sets and looking for dim, nearby dwarf stars that had so far evaded detection.

Teegarden’s star is a stellar runt that’s barely 9 percent of the sun’s mass. It’s known as an ultra-cool M dwarf, and it emits most of its light in the infrared—just like the star TRAPPIST-1, which hosts seven known rocky planets. But Teegarden’s star is just a third as far from Earth as the TRAPPIST-1 system, which makes it ideal for further characterization.

Jun 20, 2019

Low-carb diet could reduce risk of these diseases

Posted by in categories: biotech/medical, health

Scientists gave participants low-, medium- and high-carb diets to see what they did to their health.

Jun 20, 2019

First-ever noninvasive mind-controlled robotic arm

Posted by in categories: innovation, robotics/AI

A team of researchers from Carnegie Mellon has made a breakthrough in the field of noninvasive robotic device control. Using a noninvasive brain-computer interface, they have developed the first-ever successful mind-controlled robotic arm exhibiting the ability to continuously track and follow a computer cursor.

Jun 20, 2019

Going Nuclear Over the Pacific

Posted by in category: nuclear weapons

Starfish Prime was a July 9, 1962 high-altitude nuclear test conducted by the United States, a joint effort of the Atomic Energy Commission and the Defense Atomic Support Agency.

Jun 20, 2019

Forget about The Terminator — we should be worrying about AI malware first

Posted by in categories: cybercrime/malcode, robotics/AI

Advancement of artificial intelligence (AI) prompts fears of a Terminator-style future where humans live as an underclass to the machines we created. However, humanity may face a far more immediate threat in the form of AI malware.

Jun 20, 2019

Systems Chemistry: Steps Towards De-Novo Life | Projects | H2020

Posted by in categories: biological, chemistry

We synthesise life de-novo in the lab? This is one of the Grand Challenges of contemporary Science. Overall objective of this project is to set important steps in turning chemistry into biology by building fully synthetic chemical systems that contain and integrate some of the essential elements of life: replication, metabolism and compartmentalisation. Functional coupling of any of life’s essential elements has not been achieved, at least not without making use of biomolecules. We now aim to achieve such coupling and develop fully chemical systems to become increasingly life-like. Specific aims are:

Jun 20, 2019

Quantum Computing for English Majors

Posted by in categories: computing, information science, quantum physics

Poet who discovered Shor’s algorithm answers questions about quantum computers and other mysteries.