Monday, February 6, 2023

NASA discovers first Earth-sized exoplanet

researchers of NASA confirmed the existence of a exoplanet through space telescope james webb and was classified as LHS 475 B, after satellite Tess Having detected the presence of an object outside the Solar System, it was they who decided to observe it, and James Webb’s near-infrared spectrograph captured the exoplanet.

Kevin Stevenson and Jacob Lustig-Yeagerboth Johns Hopkins University Applied Physics Laboratorywas in charge of the investigation and presented its results at a meeting of American Astronomical Society, It was clarified that the only telescope capable of analyzing the atmospheres of exoplanets of this magnitude is James Webb.

According to research, the diameter of the exoplanet LHS 475 B Take 99% similarity to earth and is located in the constellation Octans 41 light years far, which is relatively close compared to other measurements. “There is no doubt that the planet is. Ancient data of Web validate it,” said merryin the statement of European Space Agency (ESA).

Team investigates what kind of atmosphere exoplanets have

Although there is not much information about exoplanetinformation about the type of environment that LHS 475 Band the researchers were able to rule out that this is a thick atmosphere, which means that it does not have a significant presence of methane. Such is the atmosphere of Saturn’s moon Titan.

Another theory is that his Climate is made of pure carbon dioxidewhat merry He commented that “optimally speaking, a 100% carbon dioxide atmosphere is much more compact and harder to detect,” and that additional spectra could be obtained this summer to help distinguish the presence of carbon dioxide.

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Despite being similar to Earth in size, it is similar to Venus in terms of its temperature.

another data thrown by james webb was that LHS 475 B a few hundred degrees warmer than TierraThat is, if the presence of clouds is detected on the exoplanet on continuing the investigation, then they can compare it with the planet VesperWhich has an atmosphere of carbon dioxide.

according to information NASAlight curve of telescope Web showed that the exoplanet completes one orbit in only two days, and moreover, it is closer to its star (the red dwarf) than any of our other planets. Solar Systemwhich is less than half of our temperature Fifth note of musical scale,

stevenson concluded that, with this probe, the door has been left open to explore other similar planets Tierraby orbiting more small red dwarf stars, and “strengthens the capabilities and accuracy of the spacecraft’s instruments.” james webb,

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