If Parker Solar Probe was launched in KSP
In 2018 Parker Solar Probe was launched on top of a Delta IV Heavy.
The Delta IV Heavy is the biggest Rocket of The Delta 4 series an probably the most metal launcher. It is manifacture by United Launch Alliances (ULA). The Delta root back all the way to the 1960s, although it has allmost nothing in common with the original Thor-Delta.
Today's guessing Question: How many Comunotrons does the Probe have?
Hint: Antennas.
Answer in the comment section!
The Rocket was replicated in Kerbal Space Program.
No mods were used, but DLC's might be required.