interstellar comet 3i atlas nasa

NASA’s SPHEREx space telescope observed interstellar comet 3I/ATLAS undergoing a dramatic outburst months after its closest approach to the Sun, providing an unprecedented chemical analysis of material from another star …

Comet 3I/ATLAS, only the third known interstellar object ever detected, made its closest approach to Earth on December 19. Though distant and faint, the flyby offers scientists a rare chance …