A mysterious ultraviolet ray found around a comet for the first time may help pave the way to protect astronauts from solar radiation, NASA said on Monday. A new study on the data of comet 67p / churyumov gerasimenko collected by the Rosetta mission overturns the old theory of the “halo” of this abnormally shaped rock and presents a new possibility. < / P > < p > < p > the Rosetta mission ended in September 2016, and the European Space Agency (ESA) probe collided with 67p / C-G after more than two years of operation around 67p / c-g. Although the equipment may be destroyed, the data sent back by the detector is still being checked and new findings are made. < / P > < p > < p > the results of the new evaluation of these NASA instruments on Rosetta are a good example. Initially, observations of comets showed that scientists named them “solar glow,” which means light photons interact with the gas envelope around the comet nucleus. By mixing information from tools such as ion and electronic sensors (ies), Alice’s ultraviolet instrument, Miro, which tracks water molecules, and other sources, the researchers found something very different. < p > < p > the halo of comets does not seem to be a solar glow, but is actually a kind of far ultraviolet aurora. Such phenomena are not necessarily unusual on earth or on other planets, where conditions like the northern lights have shown how charged particles create light shows in the atmosphere. However, until now, they have never been observed on comets. < / P > < p > “the light around 67p / C-G is unique,” said Marina galand of Imperial College London, lead author of the study, of the discovery. “By connecting data from many Rosetta instruments, we can better understand what’s going on. This allows us to clearly determine how the atomic emission of 67p / C-G is formed. ” < / P > < p > the “meritorious man” that makes it glow is the electrons from the solar wind. These charged particles from the sun interact with the gas of comets and comets, breaking down molecules such as water there. The end result is that the atoms emit far ultraviolet light, invisible to the human eye, but captured by Rosetta’s sensor array. < / P > < p > a shimmering comet itself may not be a huge insight, but these data more broadly suggest solar activity, which may be critical for future space missions. One of NASA’s biggest challenges in considering upcoming missions manned and other missions to the moon, Mars and beyond is to protect astronauts and equipment from solar radiation. This can have a huge impact on health and hinder the good operation of the system. The emission of comet < / P > < p > 67p / C-G provides a better understanding of how the solar wind evolves, as the aurora around the rocks will change over time. This understanding of “space weather” can help develop new flight plans or strategies, and even better solar radiation shielding measures, as human passengers face long voyages into the solar system. Global Tech

By ibmwl