The launches from an Australian commercial launch facility are observing the sun's nearest stars in ultraviolet light.
blocks ultraviolet light, forcing scientists to send ultraviolet telescopes into space. Meanwhile, the interstellar medium of gas and dust between the stars also absorbs ultraviolet light, so any stars that are an appreciable distance away cannot be observed very clearly in ultraviolet light. . But how typical are the sun's ultraviolet emissions? Astronomers do not know; they need ultraviolet readings from other stars to figure that out.
"Looking at Alpha Centauri will help us check if other stars like the sun have the same radiation environment or if there are a range of environments," Kevin France, an astrophysicist at the University of Colorado, Boulder, and principal investigator of SISTINE, said in the statement.
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