NEOWISE (Near‑Earth Object Wide‑field Infrared Survey Explorer) is a NASA mission that repurposed the WISE spacecraft, initially launched in 2009, to detect and characterize asteroids and comets. Using infrared sensors operating at 3.4 and 4.6 µm wavelengths, NEOWISE has cataloged hundreds of thousands of minor planets—including Near‑Earth Objects—providing critical data on their sizes, orbits, and compositions.
Source: science.nasa.gov
17/07/2020

After local midnight on July 14 comet NEOWISE was still above the horizon for Goldenrod, Alberta, Canada, just north of Calgary, planet Earth. In this snapshot it makes for an awesome night with dancing displays of the northern lights. The long-tailed comet and auroral displays are beautiful apparitions in the north these days. Both show the influence of spaceweather and the wind from the Sun. Skygazers have widely welcomed the visitor from the Oort cloud, though C/2020 F3 (NEOWISE) is in an orbit that is now taking it out of the inner Solar System. Comet NEOWISE Images: July 16 | July 15 | July 14 | July 13 | July 12 | July 11 | July 10 & earlier