
Image: A team of astronomers has taken the sharpest-ever picture of the unexpected interstellar comet 3I/ATLAS, using the crisp vision of the NASA/ESA Hubble Space Telescope.ESA's Planetary Defence Office responded promptly to the discovery of the comet, and has been tracking it since the beginning of July.Now, Hubble's observations from space are allowing astronomers to more accurately estimate the size of the comets solid icy nucleus. The upper limit on the diameter of the nucleus is 5...
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