An interstellar comet first spotted passing through our solar system in July is beginning its departure from our corner of the universe — but first it will fly by Earth, and scientists are capturing stunning new images during its approach.Known as 3I/ATLAS, the comet will make its closest pass by us on Friday, coming within about 167 million miles (270 million kilometers) of our planet, but on the other side of the sun. For reference, the sun’s distance from Earth is about 93 million miles (150 million kilometers).Comet 3I/ATLAS won’t be visible to the naked eye and the optimal viewing window, which opened in November, has passed. Those hoping to glimpse it will need an 8-inch (20-centimeter) telescope or larger, according to EarthSky.AdvertisementAdvertisementAdvertisementAdvertisementThe Virtual Telescope Project will share a livestream of the comet at 4:00 a.m. UTC on Saturday, or 11 p.m. ET Friday, after cloudy weather prevented a Thursday night streaming opportunity, said Gianluca Masi, astronomer and astrophysicist at the Bellatrix Astronomical Observatory in Italy and founder and scientific director of the Virtual Telescope Project.The comet is expected to remain visible to telescopes and space missions for a few more months before exiting our solar system, according to NASA.Astronomers have closely tracked the comet since its initial discovery over the summer in the hopes of uncovering details about its origin outside of our solar system as well as its composition. Multiple missions have observed the object in optical, infrared and radio wavelengths of light — and recently, scientists captured their first glimpses in X-rays to and discovered new details.X-raying an interstellar visitorComets that originate in our solar system emit X-rays, but astronomers have long wondered whether interstellar comets behave the same.AdvertisementAdvertisementAdvertisementAdvertisementAlthough previous attempts to find out were made as two other interst …
