Tardigrades survive deadly radiation by glowing in the dark

Tardigrade
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.

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“We found this particular tardigrade in many places, especially in places that are well lit with sunlight,” says Eswarappa. The researchers

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New technology allows cancer patients to watch movies during radiation

AURORA, Colo. (KDVR) — No matter the age, radiation treatment can be tough on any cancer patient. Which is why UCHealth helped develop a special piece of technology to help reduce anxiety and stress associated with it.

The technology is called ‘RadFlix’ and it allows patients to safely watch their favorite TV shows and movies all while undergoing radiation.

“This can be a very traumatic experience for these kids,” said Dr. Douglas Holt, the Chief Resident radiation oncologist with the University of Colorado Cancer Center.

Holt helped develop the device. It’s a radiation compatible, video distraction system that can be used with any type of radiation treatment.

“That’s important because it’s very technically challenging to do that in radiation,” Holt said.

Not only is it convenient for a patient to watch TV or a movie on ‘RadFlix’ while undergoing radiation therapy, but it also helps them cut down on the

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Tunable free-electron X-ray radiation from van der Waals materials — ScienceDaily

Researchers at the Technion — Israel Institute of Technology have developed precise radiation sources that may replace the expensive and cumbersome facilities currently used for such tasks. The suggested apparatus produces controlled radiation with a narrow spectrum that can be tuned with high resolution, at a relatively low energy investment. The findings are likely to lead to breakthroughs in a variety of fields, including the analysis of chemicals and biological materials, medical imaging, X-ray equipment for security screening, and other uses of accurate X-ray sources.

Published in the journal Nature Photonics, the study was led by Professor Ido Kaminer and his master’s student Michael Shentcis as part of a collaboration with several research institutes at the Technion: the Andrew and Erna Viterbi Faculty of Electrical Engineering, the Solid State Institute, the Russell Berrie Nanotechnology Institute (RBNI), and the Helen Diller Center for Quantum Science, Matter and Engineering.

The researchers’

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Better detection of microwave radiation will improve thermal imaging, electronic warfare, radio communications — ScienceDaily

Army-funded research developed a new microwave radiation sensor with 100,000 times higher sensitivity than currently available commercial sensors. Researchers said better detection of microwave radiation will enable improved thermal imaging, electronic warfare, radio communications and radar.

Researchers published their study in the peer-reviewed journal Nature. The team includes scientists from Harvard University, The Institute of Photonic Sciences, Massachusetts Institute of Technology, Pohang University of Science and Technology, and Raytheon BBN Technologies. The Army, in part, funded the work to fabricate this bolometer by exploiting the giant thermal response of graphene to microwave radiation.

“The microwave bolometer developed under this project is so sensitive that it is capable of detecting a single microwave photon, which is the smallest amount of energy in nature,” said Dr. Joe Qiu, program manager for solid-state electronics and electromagnetics, Army Research Office, an element of the U.S. Army Combat Capabilities Development Command’s Army Research Laboratory.

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Astronauts have to worry about radiation in space? Let’s stick to robots

This screen grab taken from video footage shows China's Jade Rabbit moon rover in 2013. <span class="copyright">(AFP Photo / CCTV )</span>
This screen grab taken from video footage shows China’s Jade Rabbit moon rover in 2013. (AFP Photo / CCTV )

To the editor: Data collected by a Chinese lunar lander on the far side of the moon show that radiation in outer space, which our atmosphere protects us from, could cause cancer in astronauts sent to the moon and Mars unless they are protected by thick-walled space vehicles or shelters.

Radiation danger to astronauts is not the only “dark side” of sending humans deep into space. Another is the enormous cost of these missions, which could absorb funds needed for infrastructure upgrades and investment in renewable energy.

Furthermore, sending humans to the moon and Mars serves no useful purpose. We would learn nothing new about the moon and Mars that we haven’t already learned from the robots that we have sent at a fraction of the cost of manned missions.

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High radiation on moon means lunar bases should be buried for safety

  • NASA recently unveiled the plan for its Artemis program, a series of missions that would return astronauts to the moon. 
  • A new study reveals how much radiation astronauts are exposed to on the lunar surface: a daily dose about 200 times greater than on Earth.
  • NASA wants to build a base on the moon, but the new data suggests it’d be safest to bury such a base under 2.5 feet of moon dirt to protect astronauts from radiation. 
  • Visit Business Insider’s homepage for more stories.

NASA wants to build a permanent base on the moon by the 2030s — a place astronauts could stay for extended visits at the lunar south pole.

But according to a new study, any astronauts who go there would face levels of radiation nearly three times higher than what the astronauts on the space station deal with. In high enough doses, long-term exposure to this

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Moonwalking Humans Get Blasted With 200 Times the Radiation Experienced on Earth | Smart News

The 12 human beings who have walked on the moon were all bombarded by radiation roughly 200 times what we experience here on Earth, reports Adam Mann for Science. That’s two to three times what astronauts experience aboard the International Space Station, explains Marcia Dunn for the Associated Press (AP), suggesting that any long term human presence on the moon will require shelters with thick walls capable of blocking the radiation.

Despite the fact that the measurements, which come courtesy of China’s Chang’e-4 lunar lander, are quite high compared to what we experience on Earth, the data is quite useful for protecting future moonwalkers. According to Science, the levels of radiation at the lunar surface wouldn’t be expected to increase the risk of NASA astronauts developing cancer by more than 3 percent—a risk threshold the agency is legally required to keep its astronauts’ activities safely below.

“This is

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First measurements of radiation levels on the moon — ScienceDaily

In the coming years and decades, various nations want to explore the moon, and plan to send astronauts there again for this purpose. But on our inhospitable satellite, space radiation poses a significant risk. The Apollo astronauts carried so-called dosimeters with them, which performed rudimentary measurements of the total radiation exposure during their entire expedition to the moon and back again. In the current issue (25 September) of the journal Science Advances, Chinese and German scientists report for the first time on time-resolved measurements of the radiation on the moon.

The “Lunar Lander Neutron and Dosimetry” (LND) was developed and built at Kiel University, on behalf of the Space Administration at the German Aerospace Center (DLR), with funding from the Federal Ministry for Economic Affairs and Energy (BMWi). The measurements taken by the LND allow the calculation of the so-called equivalent dose. This is important to estimate the biological

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Radiation levels on moon more than double those on space station

Sept. 25 (UPI) — Radiation levels on the surface of the moon are 2.6 times greater than those measured on the International Space Station, according to a new study.

NASA intends to put the first woman on the moon by 2024 — and the first man since 1972. Earlier this week, the space agency released new details about its Artemis program, including its decision to target a landing spot on the lunar South Pole near Shackleton Crater.

Regardless of where NASA’s lunar landers touch down, Artemis astronauts will need to protect themselves from increased radiation levels.

Using the Lunar Lander Neutron and Dosimetry, or LND, scientists were able to, for the first time, measure radiation levels on the lunar surface.

Scientists shared the first-of-their-kind measurements in a new paper, published Friday in the journal Science Advances.

“The radiation exposure we have measured is a good benchmark for the radiation within

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New measurements show moon has hazardous radiation levels

Updated

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