First identified comet to visit our solar system from another star

Comet 2I/Borisov is only the second interstellar object known to have passed through the solar system. These two images, taken by NASA’s Hubble Space Telescope, capture the comet appearing near a background galaxy (left) and soon after its closest approach to the Sun (right).Credit: NASA, ESA, and D. Jewitt (UCLA) When astronomers see something in […]

Read More First identified comet to visit our solar system from another star