Yale astronomers have taken a new, close-up image of the interstellar comet 2l/Borisov. 2l/Borisov, first spotted this summer, continues to draw nearer to Earth and will reach its closest approach—about 190 million miles—in early December. Yale astronomers Pieter van Dokkum, Cheng-Han Hsieh, Shany Danieli, and Gregory Laughlin captured the image Nov. 24 using the W.M. Keck Observatory's Low-Resolution Imaging Spectrometer in Hawaii. They've also created an image that shows how the comet would look alongside planet Earth. According to van Dokkum the comet's tail, shown in the new image, is nearly 100,000 miles long, which is 14 times the size of Earth. "It's humbling to realize how small Earth is next to this visitor from another solar system," van Dokkum said.