Science & Technology
Syphilis is a gruesome malady. The causative agent, a corkscrew shaped bacterium, is sexually transmitted. It initially produces pustules which turn to ulcers, then a raft of other symptoms in its secondary phase, most notably a widespread and unsightly rash of varying severity.
In its tertiary stage, which can appear many years after initial infection, it can produce gross deformations of flesh and bone, or attack the central nervous system or heart. It can also be passed from mother to unborn child.
The variety of symptoms syphilis can present has led to the disease being known as the Great Imitator, as it can masquerade as a host of other illnesses and is often therefore misdiagnosed.
But it was not always thus. The modern disease is a very different beast than the monstrosity which first appeared in Europe at the end of the fifteenth century.

An illustration imagines the filaments of gas that make up the cosmic web that connects galaxies across the universe.
Scientists found the missing matter in the form of oxygen gas. The gas filaments were found in intergalactic space, registering temperatures of around 1 million degrees Celsius.
Astronomers found the elusive matter with the help of the radiation from a distant quasar, a super luminous black hole.
As scientists worked out the chemistry of the Big Bang, they were able to estimate the amount of ordinary matter in the universe -- the matter you can see. Over the last few decades, scientists found 10 percent of the ordinary locked up inside galaxies and roughly 60 percent in intergalactic clouds of diffuse gas.

The launch of Soyuz-FG carrier rocket with Soyuz MS-09 manned spacecraft in Baikonur, Kazakhstan. June 6, 2018.
Engineers have patented a method of using iodine for electric-powered spacecraft propulsion, the Energia Space and Rocket Corporation said on Thursday. The company, based in the Moscow region, is the nation's main builder of space rockets and components for the International Space Station (ISS). It said the idea to use 'pure' iodine for space exploration was first proposed in the 90s, but thorough research started only several years ago.
Solid iodine is easy to store, can be quickly converted into gas, and is cost-effective, compared to xenon which typically serves as propellant in electric-powered propulsion engines. Switching to iodine can potentially make the process "ten times cheaper', while the engine itself will be smaller and less heavy, the company said. Furthermore, xenon-run engines are incapable of long-distance flights, like going to the Moon.

This illustration shows the most common structure of DNA found in a cell, called B-DNA.
Now researchers at The University of Texas at Austin have developed a new method for correcting the errors that creep into DNA barcodes, yielding far more accurate results and paving the way for more ambitious medical research in the future.
The team - led by postdoctoral researcher John Hawkins, professor Bill Press and assistant professor Ilya Finkelstein - demonstrated that their new method lowers the error rate in barcodes from 10 percent to 0.5 percent, while working extremely rapidly. They describe their method, called FREE (filled/truncated right end edit) barcodes, today in the journal Proceedings of the National Academy of Sciences.
The researchers have applied for a patent and are making the method freely available for academic and noncommercial use.

On Wednesday, June 20, 2018, the U.S.'s National Science and Technology Council released a report calling for improved asteroid detection, tracking and deflection. NASA is taking part in the effort, along with federal emergency and White House officials.
The National Science and Technology Council released a report Wednesday calling for improved asteroid detection, tracking and deflection. NASA is participating, along with federal emergency, military, White House and other officials.
For now, scientists know of no asteroids or comets heading our way. But one could sneak up on us, and that's why the government wants a better plan.
Comment: And they are sneaking up on us with increasing frequency.
NASA's planetary defense officer, Lindley Johnson, said scientists have found 95 percent of all these near-Earth objects measuring one kilometer (two-thirds of a mile) or bigger. But the hunt is still on for the remaining 5 percent and smaller rocks that could still inflict big damage.

In this June 4, 2018, photo, a man collects plastic and other recyclable material from the shores of the Arabian Sea, littered with plastic bags and other garbage, in Mumbai, India.
In the wake of China's decision to stop importing nearly half of the world's scrap starting Jan. 1, particularly from the wealthiest nations, waste management operations across the country are struggling to process heavy volumes of paper and plastic that they can no longer unload on the Chinese. States such as Massachusetts and Oregon are lifting restrictions against pouring recyclable material into landfills to grant the operations some relief.
If Europe and the rest of the world struggle like the United States, according to the study by researchers at the University of Georgia released Wednesday, an estimated 111 million metric tons of plastic waste will pile up by 2030. Based on the amount of domestic scrap exported to China, the researchers estimate that the United States will have to contend with 37 million metric tons of extra waste, an amount it's not prepared to handle.
The more immediate and noticeable change for most Americans, both conservationists and waste management operators said, will be in their homes. As recycling programs change or even disappear, residents will face new questions about what material can be recycled and what cannot.
Researchers at Arizona State University have published a new study looking at the likelihood of a 7.5-magnitude (or stronger) quake occurring and rupturing the entire fault line.
It has long been thought that the central section of the fault line, which stretches 90 miles from San Juan Bautista southward to Parkfield, was creeping steadily in such a way that provided for the safe release of energy. That "creeping" movement, scientists believed, lessened the chances of a huge quake rupturing the entire fault line - but new research casts doubt over old assumptions.
It was founded by software developer Krishna Bharat in 2002 in response to the scramble for news that followed the attacks on the World Trade Centre on 11 September 2001.
The service collects and ranks all articles on a particular topic then making international headlines into clusters, allowing readers to choose which publication's account they read.
But how does Google rank the content it shows?

Gareth Gaston, executive vice president and head of omnichannel banking at U.S. Bank, discusses voice assistant banking with an Amazon Echo, left, and a Google Home, right, in Manhattan on June 14.
Big banks and financial companies have started to offer banking through virtual assistants - Amazon's Alexa, Apple's Siri, and Google's Assistant - in a way that will allow customers to check their balances, pay bills and, in the near future, send money just with their voice. And with the rapid adoption of Zelle, a bank-to-bank transfer system, it soon could be possible to send money to friends or family instantly with voice commands.
But the potential to do such sensitive tasks through a smart speaker raises security concerns. Virtual assistants and smart speakers are still relatively new technologies, and potentially susceptible to being exploited by cyber criminals.
Regional banking giant U.S. Bank is the first bank to be on all three services - Alexa, Siri and Assistant. The company did a soft launch of its Siri and Assistant services in early March and this month started marketing the option to customers.
The group's theory revolves around the idea of "retrocausality," which aims to explain one of the central mysteries of quantum physics: quantum entanglement.
At the heart of what makes quantum physics so confusing (and seemingly insane) is the idea that the actual properties of particles change when they're observed.
Until then, they seem to exist in a state of blurry possibilities, where they can, for example, be spinning in both directions and neither all at once.
So is this seemingly paradoxical "quantum state" a real phenomenon, or just a product of a flawed view of physics?









Comment: Looks like someone has been paying attention to the alarming number of space rocks in our skies recently: