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The first image of Sgr A* provided an unprecedented look at the nearest supermassive black hole. “By using JWST, we’ll be able to improve upon that by a factor of two or three, basically probe even closer to the black hole than we could before.”
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“We’re going to measure the motions of stars very close to the black hole and therefore learn about the mass of the black hole and this object much better than has been done before,” she says. Walsh is leading a project that will use JWST to watch how stars swirl closely around the supermassive black hole M87, the subject of the EHT’s first image. “Over the last 20 or so years, we’ve learned that black holes are at the center of essentially every massive galaxy,” Jonelle Walsh, an astronomer at Texas A&M University, tells Inverse. While physicists like Karl Schwarzschild used Albert Einstein’s theory of relativity to propose black holes over a century ago, only relatively recently have astronomers begun to understand more about them, including how widespread they are. But if the circumstances were right, the EHT and JWST could team up to tell us more about black holes than has been possible to date. In just its first five months of active use, the space telescope will examine galaxy evolution, exoplanetary systems, star formation, active galactic nuclei, and more, with scientists vying for coveted chunks of observing time on the telescope. With its instruments calibrated and ready to go, JWST has a packed schedule for its first year of observing. NASA, ESA, CSA, STScI James Webb Space Telescope and black holes Surprise! There was an active galactic nuclei hiding here.