Hubble captured this image of interstellar comet 3I/ATLAS on July 21, 2025, when the comet was 277 million miles from Earth.

Hubble takes the sharpest image, to date, of comet 3I/ATLAS, allowing astronomers to more accurately estimate the size of its nucleus.

This Hubble image features a portion of the star-forming region called the Tarantula Nebula located about 160,000 light-years away.

Planetary Defense at NASA In 2016, NASA established the Planetary Defense Coordination Office (PDCO) to manage the agency's ongoing mission of finding, tracking, and better understanding asteroids and ...