‘e-Nose’ Developed to Detect Fungi, Germs in ISS

File photo of the International Space Station (ISS) photographed by Expedition 56 crew members from a Soyuz spacecraft after undocking, Oct. 4, 2018. (Reuters)
File photo of the International Space Station (ISS) photographed by Expedition 56 crew members from a Soyuz spacecraft after undocking, Oct. 4, 2018. (Reuters)
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‘e-Nose’ Developed to Detect Fungi, Germs in ISS

File photo of the International Space Station (ISS) photographed by Expedition 56 crew members from a Soyuz spacecraft after undocking, Oct. 4, 2018. (Reuters)
File photo of the International Space Station (ISS) photographed by Expedition 56 crew members from a Soyuz spacecraft after undocking, Oct. 4, 2018. (Reuters)

A team of Russian researchers revealed that the environment inside the International Space Station (ISS) is contaminated. In their tests, they used advanced tools that can be utilized later to maintain the "health and safety" of spacecraft during long-term manned missions planned to other planets.

The new study was carried out by experts at the Russian Institute of Biomedical Problems and presented during the "Korolev's Reading" event, named after Sergei Korolev, the father of the Russian rocket industry and the leader of the Soviet Union's entry in the "Space Age".

In their experiments, the researchers said they used a new device named "e-nose" on the ISS, where it detected fungi and germs. The e-nose is capable of monitoring pollution by capturing the gases emitted by these organisms.

In their report, the researchers didn't determine the type of the germs and fungi found inside the ISS, but they are likely non-harmful species that often exist in the air.

The air test conducted in the ISS was aimed at testing the "e-nose" and its efficacy in detecting the types and sources of pollution, in order to use it in monitoring contamination levels inside spacecraft in future interplanetary missions.

Based on the results of the primary tests, the researchers said the "e-nose" has proved its reliability in detecting fungi and germs in different parts of the ISS.

They suggested the new device could be used in the future to monitor all the parts and devices in spacecraft in order to prevent germs growth onboard, or to determine the type of any detected germ so astronauts can swiftly address the problem and halt its development while the spacecraft is in deep space, far away from the Earth, where it requires prevention to guaranty the continuation of its mission.



Climate Change Causing More Change in Rainfall, Fiercer Typhoons, Scientists Say 

People and vehicles wade through the water along a street that was flooded by Typhoon Gaemi in Kaohsiung on July 25, 2024. (AFP)
People and vehicles wade through the water along a street that was flooded by Typhoon Gaemi in Kaohsiung on July 25, 2024. (AFP)
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Climate Change Causing More Change in Rainfall, Fiercer Typhoons, Scientists Say 

People and vehicles wade through the water along a street that was flooded by Typhoon Gaemi in Kaohsiung on July 25, 2024. (AFP)
People and vehicles wade through the water along a street that was flooded by Typhoon Gaemi in Kaohsiung on July 25, 2024. (AFP)

Climate change is driving changes in rainfall patterns across the world, scientists said in a paper published on Friday, which could also be intensifying typhoons and other tropical storms.

Taiwan, the Philippines and then China were lashed by the year's most powerful typhoon this week, with schools, businesses and financial markets shut as wind speeds surged up to 227 kph (141 mph). On China's eastern coast, hundreds of thousands of people were evacuated ahead of landfall on Thursday.

Stronger tropical storms are part of a wider phenomenon of weather extremes driven by higher temperatures, scientists say.

Researchers led by Zhang Wenxia at the China Academy of Sciences studied historical meteorological data and found about 75% of the world's land area had seen a rise in "precipitation variability" or wider swings between wet and dry weather.

Warming temperatures have enhanced the ability of the atmosphere to hold moisture, which is causing wider fluctuations in rainfall, the researchers said in a paper published by the Science journal.

"(Variability) has increased in most places, including Australia, which means rainier rain periods and drier dry periods," said Steven Sherwood, a scientist at the Climate Change Research Center at the University of New South Wales, who was not involved in the study.

"This is going to increase as global warming continues, enhancing the chances of droughts and/or floods."

FEWER, BUT MORE INTENSE, STORMS

Scientists believe that climate change is also reshaping the behavior of tropical storms, including typhoons, making them less frequent but more powerful.

"I believe higher water vapor in the atmosphere is the ultimate cause of all of these tendencies toward more extreme hydrologic phenomena," Sherwood told Reuters.

Typhoon Gaemi, which first made landfall in Taiwan on Wednesday, was the strongest to hit the island in eight years.

While it is difficult to attribute individual weather events to climate change, models predict that global warming makes typhoons stronger, said Sachie Kanada, a researcher at Japan's Nagoya University.

"In general, warmer sea surface temperature is a favorable condition for tropical cyclone development," she said.

In its "blue paper" on climate change published this month, China said the number of typhoons in the Northwest Pacific and South China Sea had declined significantly since the 1990s, but they were getting stronger.

Taiwan also said in its climate change report published in May that climate change was likely to reduce the overall number of typhoons in the region while making each one more intense.

The decrease in the number of typhoons is due to the uneven pattern of ocean warming, with temperatures rising faster in the western Pacific than the east, said Feng Xiangbo, a tropical cyclone research scientist at the University of Reading.

Water vapor capacity in the lower atmosphere is expected to rise by 7% for each 1 degree Celsius increase in temperatures, with tropical cyclone rainfall in the United States surging by as much as 40% for each single degree rise, he said.