HOUSTON - The National Aeronautics and Space Administration carried out a flyover across the Houston area on Thursday morning.
Just before 10 a.m. viewers reported seeing the jets - first near Ellington Airport and then the Galleria and downtown.
"Residents should not be alarmed if they see planes like the one pictured below flying in formation lower than usual throughout the Houston area," NASA stated in a press release.
The flyover was part of a "media day" for NASA. NASA's trio of WB-57s took a historic photo flight in formation around the city.
"NASA's WB-57 High Altitude Research Program is comprised of three WB-57 aircraft based near Johnson Space Center at Ellington Airport. The aircraft have been flying research missions since the early 1960's, and continue to be an asset to the scientific community. Missions include: atmospheric and earth science research, cosmic dust collection, rocket launch support, and research and design test bed operations for airborne and spaceborne systems."
The jets returned to Ellington just after 11 a.m.
Photos: NASA WB-57s fly over Houston