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Jupiter’s Moon, Europa Covered In Thick Snow: NASA

NASA plans to launch a mission called Europa Clipper in the 2020s.

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Jupiter, Europa, NASA
Ice blades cover Jupiter's moon Europa: Study. Pixabay

Jupiter’s ocean moon Europa is probably covered with blades of ice up to 15 meters tall in its equatorial regions, making alien life search difficult, NASA researchers have found.

The potentially life-supporting Europa has been studied by NASA, whose work has become more difficult due to the ice towers, Xinhua news agency reported.

Europa, Jupiter, NASA
Europa (Moon) · Artist’s concept of Europa and Jupiter , NASA

“Clearly, the paper suggests very strongly that the tropics of Europa are going to be spiky, and it would be unwise to plan to land there without a specially adapted lander,” said Dan Hobley, lead author of the study and a lecturer in the School of Earth and Ocean Sciences at Cardiff University.

Jagged ice towers could also be found on Earth, especially in high, dry and cold tropical regions like the Chilean Andes. These ice towers are named “penitentes”, Spanish for “penitent”, because they often look like people kneeling in penance.

Scientists found that penitentes on Europa could be up to 15 meters tall, spaced about seven meters apart, while on Earth their height usually ranges from one to five meters.

Europa, Jupiter, NASA
These ice towers are named “penitentes”, Spanish for “penitent. IANS

 

“The Europa penitentes grow much slower than the Earth examples, but on Earth they might be restricted to a season or maybe two until they melt in summer or get covered in more snow, but on Europa, they are sat out in the sun growing for 50 million years,” Hobley explained.

Also Read: A Dozen New Moons Found Orbiting Jupiter

NASA plans to launch a mission called Europa Clipper in the 2020s.

At a cost of $2 billion, the mission will “perform repeated close flybys of the icy moon from a long, looping orbit around Jupiter”, assess the possible landing site on Europa and try to seek out signs of life on the moon. (IANS)

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Study Reveals Solar Cells Can Retain Most Of Their Power Conversion Efficiency in Near Space

In the study, researchers from China's Peking University sent the devices fixed with PSCs into near space on a high-altitude balloon.

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solar energy
Perovskite solar cells (PSCs) are known for their potential of achieving higher efficiency and low production costs compared to traditional silicon solar cells. Pixabay

Chinese researchers have found that solar cells can retain most of their power conversion efficiency in near space, providing perspectives on the cells’ future application in space.

Perovskite solar cells (PSCs) are known for their potential of achieving higher efficiency and low production costs compared to traditional silicon solar cells.

These cells also have great potential for developing the new-generation energy technology for space application, but little research has been done to test the stability of PSCs in the extreme space environment, Xinhua news agency reported.

In the study, researchers from China’s Peking University sent the devices fixed with PSCs into near space on a high-altitude balloon.

energy
These cells also have great potential for developing the new-generation energy technology for space application, but little research has been done to test the stability of PSCs in the extreme space environment, Xinhua news agency reported. Piixabay

The balloon rose to near space at an altitude of 35 km, a region above Earth’s atmosphere where there is only a trace amount of moisture and ozone.

The region, considered to have “air mass zero” contains no atmospheric attenuation of solar radiation and therefore several high-energy particles and radiation, such as neutrons, electrons and gamma rays, originate from the galactic cosmic rays and solar flares.

solar cells
Chinese researchers have found that solar cells can retain most of their power conversion efficiency in near space, providing perspectives on the cells’ future application in space.
Pixabay

Also Read: Know About The Psychologists Team Helping To Prevent Farmers’ Suicides in Parts of Telangana

According to the findings, one type of PSCs used in the study retained more than 95 per cent of its initial power conversion efficiency during the test, the researchers reported in the journal Science China Physics, Mechanics and Astronomy.

They said the study is expected to play a crucial role in the future stability research of PSCs. (IANS)