https://phys.org/news/2018-08-wow-nasa-spacecraft-hurtles-sun.html

Altogether, the Parker probe will make 24 close approaches to our star during the seven-year, $1.5 billion journey.

"Wow, here we go. We're in for some learning over the next several years," said Eugene Parker, the 91-year-old astrophysicist for whom the spacecraft is named.