JWST can detect atmospheres for the first time.
LHS 475 b is a rocky exoplanet roughly the same size as Earth that orbits very close to a small, dim star. And for the first time, researchers are able to study the planet’s atmosphere.This illustration reflects that exoplanet LHS 475 b is rocky and almost precisely the same size as Earth based on new evidence from NASA’s James Webb Space Telescope.The James Webb Space Telescope has discovered its first new exoplanet, an Earth-sized rocky planet called LHS 475 b.
The fact that JWST was able to detect this planet indicates it will be able to identify more Earth-like planets in the future. And even more than that, it should be able toThe ultimate aim of much current exoplanet research is to understand the atmospheres around exoplanets. In order to better understand whether, astronomers need to study their atmospheres, as this can have a profound impact on factors like surface temperature.
Even though JWST should be able to detect exoplanet atmospheres, the task remains challenging. Exoplanets are much smaller than stars and give off much less light, so they are rarely detected directly. Instead, astronomers study host stars and look for small deviations in their brightness or motion, which indicate the presence of a planet orbiting them.
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