Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Artist’s rendition of USGS Landsat 9 in orbit. The joint NASA-USGS Landsat program plans a fall 2021 launch for the orbiter, which will maintain and extend an unbroken record of Earth observation data stretching back nearly 50 years.
Public Domain.
