This t photo released by NASA shows the United Launch Alliance Delta IV Heavy rocket seen in this long exposure photograph as it launches NASA's Parker Solar Probe to touch the Sun. AFP/NASA
This photo released by NASA shows the United Launch Alliance Delta IV Heavy rocket with the Parker Solar Probe on board launching from the Mobile Service Tower. AFP/NASA
A photo made available by NASA shows the team behind the Parker Solar Probe (PSP) posing for a group photo in front of the probe, at Astrotech Space Operations. EPA/NASA
A photo made available by the NASA shows the United Launch Alliance Delta IV Heavy rocket launches NASA's Parker Solar Probe to touch the Sun. EPA/NASA
A photo made available by the NASA shows the United Launch Alliance Delta IV Heavy rocket launches NASA's Parker Solar Probe to touch the Sun. EPA/NASA
A photo made available by NASA shows the Mobile Service Tower is rolled back to reveal the United Launch Alliance Delta IV Heavy rocket with the Parker Solar Probe onboard. EPA/NASA
A photo made available by NASA shows an artists' impression of the Parker Solar Probe (PSP) approaching the Sun. EPA/NASA
This photo released by NASA shows the United Launch Alliance Delta IV Heavy rocket with the Parker Solar Probe onboard shortly after the Mobile Service Tower was rolled back. AFP/NASA
This photo released by NASA shows the United Launch Alliance Delta IV Heavy rocket with the Parker Solar Probe onboard shortly after the Mobile Service Tower was rolled back. AFP/NASA
A photo made available by the NASA shows the United Launch Alliance Delta IV Heavy rocket launches NASA's Parker Solar Probe to touch the Sun. EPA/NASA
In this photo provided by NASA, The United Launch Alliance Delta IV Heavy rocket launches NASA's Parker Solar Probe to touch the Sun. Getty/NASA
This photo released by NASA shows the United Launch Alliance Delta IV Heavy rocket with the Parker Solar Probe onboard moments before launch. AFP/NASA
This t photo released by NASA shows the United Launch Alliance Delta IV Heavy rocket seen in this long exposure photograph as it launches NASA's Parker Solar Probe to touch the Sun. AFP/NASA
This photo released by NASA shows the United Launch Alliance Delta IV Heavy rocket with the Parker Solar Probe on board launching from the Mobile Service Tower. AFP/NASA
A photo made available by NASA shows the team behind the Parker Solar Probe (PSP) posing for a group photo in front of the probe, at Astrotech Space Operations. EPA/NASA
A photo made available by the NASA shows the United Launch Alliance Delta IV Heavy rocket launches NASA's Parker Solar Probe to touch the Sun. EPA/NASA
A photo made available by the NASA shows the United Launch Alliance Delta IV Heavy rocket launches NASA's Parker Solar Probe to touch the Sun. EPA/NASA
A photo made available by NASA shows the Mobile Service Tower is rolled back to reveal the United Launch Alliance Delta IV Heavy rocket with the Parker Solar Probe onboard. EPA/NASA
A photo made available by NASA shows an artists' impression of the Parker Solar Probe (PSP) approaching the Sun. EPA/NASA
This photo released by NASA shows the United Launch Alliance Delta IV Heavy rocket with the Parker Solar Probe onboard shortly after the Mobile Service Tower was rolled back. AFP/NASA
This photo released by NASA shows the United Launch Alliance Delta IV Heavy rocket with the Parker Solar Probe onboard shortly after the Mobile Service Tower was rolled back. AFP/NASA
A photo made available by the NASA shows the United Launch Alliance Delta IV Heavy rocket launches NASA's Parker Solar Probe to touch the Sun. EPA/NASA
In this photo provided by NASA, The United Launch Alliance Delta IV Heavy rocket launches NASA's Parker Solar Probe to touch the Sun. Getty/NASA
This photo released by NASA shows the United Launch Alliance Delta IV Heavy rocket with the Parker Solar Probe onboard moments before launch. AFP/NASA
This t photo released by NASA shows the United Launch Alliance Delta IV Heavy rocket seen in this long exposure photograph as it launches NASA's Parker Solar Probe to touch the Sun. AFP/NASA
