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Revised Launch Date Targeted for Parker Solar Probe

An animation of NASA's Parker Solar Probe swinging by the Sun, with its sunshield consistently facing the Sun and protecting the spacecraft. Parker appears like a spiky gold instrument with a flat sunshield at the bottom, facing the Sun. The Sun appears like a massive, glowing, swirling orange ball.
Illustration of Parker Solar Probe circling the Sun.

Editor’s note: The Parker Solar Probe launch is currently targeted for Aug. 11 at 3:33 a.m. EDT, with an extended launch window through Aug. 23. For the latest, see the NASA Launch Schedule.

NASA and the Johns Hopkins University Applied Physics Laboratory are now targeting launch of the agency’s Parker Solar Probe spacecraft no earlier than Aug. 4, 2018. Originally scheduled to launch on July 31, additional time is needed to accommodate further software testing of spacecraft systems. The Parker Solar Probe will launch on a United Launch Alliance Delta IV Heavy rocket from Space Launch Complex 37 on Cape Canaveral Air Force Station in Florida.

Parker Solar Probe will fly closer to the Sun’s surface than any spacecraft before it, facing brutal heat and radiation conditions and ultimately providing humanity with the first-ever samplings of a star’s corona.


Media contact: Karen C. Fox
NASA’s Goddard Space Flight Center, Greenbelt, Md.