Tardigrades survive deadly radiation by glowing in the dark


This tardigrade uses fluorescence to resist lethal UV radiation

Harikumar R Suma & Sandeep M Eswarappa

A tiny tardigrade can survive intense ultraviolet radiation for an hour by glowing in the dark. “It acts like a shield,” says Sandeep Eswarappa at the Indian Institute of Science in Bangalore.

Tardigrades, also known as water bears, are animals around 1 millimetre long. They are famous for being able to withstand extreme conditions that would kill most organisms, such as being completely dried out.

Studying moss at their institute’s campus, Eswarappa and his colleagues found what may be a new species of tardigrade, though they don’t yet have enough information to formally describe it. For now, they are calling it Paramacrobiotus BLR, short for Bangalore.


“We found this particular tardigrade in many places, especially in places that are well lit with sunlight,” says Eswarappa. The researchers transferred some of the animals to their laboratory and began to study them.

Their first experiment involved exposing the animals to a germicidal ultraviolet lamp. A control animal, a worm called Caenorhabditis elegans, died within 5 minutes, but Paramacrobiotus BLR survived for an hour.

“The next step happened serendipitously,” says Eswarappa. While looking at how the tardigrades might survive the UV light, he left a tube of them near a UV source and noticed that the tube started glowing.

Further experiments revealed that the tardigrades contain a fluorescent chemical. “It is absorbing the UV light and emitting harmless visible light in the blue range,” says Eswarappa.

The team was able to transfer the fluorescent chemical to another tardigrade, Hypsibius exemplaris, and to C. elegans, both of which are sensitive to ultraviolet radiation. This protected them from 15 minutes of UV exposure.

The team doesn’t yet know exactly

COVID-19 can survive on phone screens for 28 days in the dark, study suggests


a hand holding a cell phone: Crystal Cox/Business Insider

© Crystal Cox/Business Insider
Crystal Cox/Business Insider

  • Research from Australia’s national science agency suggests that the COVID-19 virus can survive on smooth surfaces for 28 days at room temperature.
  • The study tested the virus on glass mobile phone screens, plastic and paper banknotes, and stainless steel.
  • Researchers kept these surfaces in the dark during the study. UV light has been shown to kill COVID-19.
  • Previous studies have suggested the virus lingers on these surfaces for seven days or less.
  • Visit Business Insider’s homepage for more stories.

The COVID-19 virus can survive on phone screens for 28 days under laboratory conditions, longer than previously thought, new research from the Australian government’s science agency has found. 

Researchers tested the virus on smooth surfaces such as glass phone screens and paper banknotes. They kept them in the dark at room temperature, around 20 degrees Celsius (68 degrees Fahrenheit).

They found the virus could survive for just under a month in these conditions.

UV light has been shown to kill COVID-19 in previous research.

Video: Covid-19 virus can survive up to 28 days, scientists say (NBC News)

Covid-19 virus can survive up to 28 days, scientists say



The findings of the study, conducted by the Commonwealth Scientific and Industrial Research Organisation, were published on October 7 in Virology Journal.

Previous research suggested that SARS-Cov-2 survives on glass and bank notes for about two to three days, and lingers on plastic and stainless steel for six days at most. One study, published in The Lancet, suggested the virus suggests the virus can survive for seven days for stainless steel.

In the latest study, the virus did not survive on porous materials such as cloth past a 14-day period. In comparison, the flu virus can survive on these surfaces in

Study Suggests COVID-19 Can Survive For 28 Days On A Smartphone


In some concerning news, a new study has found that COVID-19 can survive for up to 28 days on a smartphone screen. This news comes from a study in Virology Journal which has reinforced the need for regular cleaning of devices and handwashing in the fight against the disease.

Some smartphone manufactures were alert to the threat of coronavirus surviving on screens before this study released. Samsung recently patented something called ‘Antimicrobial Coating’. The thought is that the company will produce smartphone cases designed to fight the virus.

Additionally, successful tests have been conducted of UV Light-based robots designed to kill coronavirus. These have sold to a number of healthcare settings to try and help combat the disease more effectively.

The new research, however, is still quite worrying. As reported by ZDNet it underlies the importance of maintaining good hygiene habits surrounding surface and device cleaning as the virus continues to spread.

New study makes worrying reading for coronavirus survival

The fact that COVID-19 can survive for up to 28 days on a smartphone screen is quite worrying for most. Given many have probably slipped into bad habits surrounding device and surface cleaning this should serve as a reminder.

The specifics of the study demonstrated that the virus can last for up to a month on the glass when kept at an ambient temperature and humidity. This also applies to stainless steel, and both paper and polymer banknotes.

The paper stated, “touchscreen devices may provide a potential source of transmission, and should regularly be disinfected especially in multi-user environments”.

Previous studies had indicated that the virus could last for just a few days on these sorts of surfaces. This was still worrying given how many people may touch these surfaces in that time. However, this new study suggests an even

COVID-19 virus can survive on smartphone screens for 28 days, claims researchers


Are you still washing your hands often and cleaning your phone screen and other gadgets regularly, or has that habit slipped? With the COVID-19 virus still burning its way through the population, it’s a bad time to let good habits slide, especially given the results of a new study by Australian researchers.

The findings, published in Virology Journal, suggest that the SARS-Cov-2 virus responsible for COVID-19 can last for almost a month on glass, stainless steel, and both paper and polymer banknotes if kept at ambient temperature and humidity (20 °C and 50 percent RH).

Must read: Does Apple’s iOS 14 ‘nuclear’ battery fix work?

According to the paper, “the persistence of SARS-COV-2 on glass and vinyl (both common screen and screen protector materials, suggest that touchscreen devices may provide a potential source of transmission, and should regularly be disinfected especially in multi-user environments.”

It’s not just glass surfaces either. Banknotes — both the paper kind and the plastic polymer style used in countries such as the UK and Australia — are also toxic hellstews.

“While other studies have shown that paper notes harbor more pathogens than polymer notes, this data demonstrates that SARS-CoV-2 persists on both paper notes and polymer notes to at least 28 days at 20°C, albeit with a faster rate of inactivation on polymer notes.”

A previous study had suggested that SARS-CoV-2 could survive for a few days on glass and banknotes, and up to six days on glass and stainless steel. Not as long, but think about how many times a surface could be touched in that time.

What does this mean?

Keep cleaning the devices you touch, and wash your hands regularly. 

Here’s now Apple suggest you disinfect your iDevices and Macs, there are UV disinfection tools for smartphones and keys such as the

4 Ways The Oil Industry Must Rapidly Evolve To Survive


A common misreading of Darwinism is that only the strongest survive. Not quite. Charles Darwin argued that organisms that mutated to adapt to changing environments would, through a process of natural selection, lead to the evolution of new species. It had nothing to do with strength, but adaptability. And while the oil and gas industry has some of the world’s cleverest engineers and scientists, they don’t call it Big Oil because it’s especially good at change. We all know that if the energy sector’s cost structure does not evolve, the entire industry will end up like the prehistoric giants who provided the raw material for fossil fuels in the first place.

The good news is that there is a clear, four-step path to industry-wide cost restructuring, leading into a future where smart companies can thrive. There is between $500 billion and $1 trillion in trapped value from inefficiencies in global oil and gas upstream and downstream. Unlocking that value will put the industry on competitive footing with the future.

The bad news is that there is no option but to head down this path, and not everyone who does will make it. Right now, the oil and gas industry does not pencil out. The collapse of commodity prices in 2014 pushed the break-even points, on average, from $80/bbl to $60/bbl. It wasn’t enough, because prices never recovered fully, or for long. Market returns are in the single digits while ESG concerns are pushing investors to demand closer to 15% returns.

Meanwhile, other sources