Thanks for the great comment, @audreybits! :D

Risks, indeed...so many years of work and millions or even billions of dollars of material and development went into the Parker Solar Probe - most of which would have been lost if anything went wrong on this launch. ULA has an amazing track record (I hear it's 100% after 130 launches), which is incredible considering the complexity of these endeavors, but there's always the possibility of failure.

I hope you see a launch yourself one day. :)