The United Launch Alliance Delta IV Heavy rocket launches NASA's Parker Solar Probe to the Sun at Cape Canaveral, Florida, U.S. August 12, 2018 NASA/Bill Ingalls/Handout via REUTERS. ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY
The United Launch Alliance Delta IV Heavy rocket launches NASA's Parker Solar Probe to the Sun at Cape Canaveral, Florida, U.S. August 12, 2018 NASA/Bill Ingalls/Handout via REUTERS. ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY TPX IMAGES OF THE DAY
The United Launch Alliance Delta IV Heavy rocket launches NASA's Parker Solar Probe to the Sun at Cape Canaveral, Florida, U.S. August 12, 2018 NASA/Bill Ingalls/Handout via REUTERS. ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY
The United Launch Alliance Delta IV Heavy rocket launches NASA's Parker Solar Probe to the Sun at Cape Canaveral, Florida, U.S. August 12, 2018 NASA/Bill Ingalls/Handout via REUTERS. ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY
The United Launch Alliance Delta IV Heavy rocket launches NASA's Parker Solar Probe to the Sun at Cape Canaveral, Florida, U.S. August 12, 2018 NASA/Bill Ingalls/Handout via REUTERS. ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY
The United Launch Alliance Delta IV Heavy rocket with NASA's Parker Solar Probe onboard is reflected in water at Cape Canaveral, Florida, U.S. August 11, 2018. Picture taken August 11, 2018. NASA/Bill Ingalls/Handout via REUTERS. ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY
The Mobile Service Tower is rolled back to reveal the United Launch Alliance Delta IV Heavy rocket with NASA's Parker Solar Probe onboard at Cape Canaveral, Florida, U.S. August 11, 2018. Picture taken August 11, 2018. NASA/Bill Ingalls/Handout via REUTERS. ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY
The Mobile Service Tower is rolled back to reveal the United Launch Alliance Delta IV Heavy rocket with NASA's Parker Solar Probe onboard at Cape Canaveral, Florida, U.S. August 11, 2018. Picture taken August 11, 2018. NASA/Bill Ingalls/Handout via REUTERS. ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY
NASA’s Parker Solar Probe off to touch the Sun