Interstellar comet 3I/ATLAS shines in the sharpest view yet captured by the Hubble Space Telescope, helping astronomers determine the object’s size.

As the comet 3I/ATLAS plummets through our Solar System, NASA's good old Hubble Space Telescope has captured the best look yet at the interstellar visitor. On July 21, the interstellar interloper passed close enough to Earth — and to Hubble,

NASA’s Hubble Space Telescope has captured its most detailed image yet of interstellar comet 3I/ATLAS. The rare comet is expected to remain visible to ground-based telescopes through September before passing behind the Sun and reappearing during the winter.