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. Researchers believe the comet formed in a solar system beyond ours and was ejected into interstellar space as a consequence of a near-collision with a planet in its original solar system.
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.