Interstellar comet that zoomed past Earth could be oldest and coldest object ever seen in solar system, astronomers say
An interstellar comet that blazed past the sun and swung by Earth last year could be nearly three times older than our solar system and is unlike anything ever before seen in our cosmic backyard, astronomers said Monday. The comet 3I/ATLAS is just the third visitor from beyond our solar system that humanity has ever … Read more