markmccaughrean, 
Comet 1P/Halley is at aphelion today, its furthest from the Sun, starting the long journey back towards its next close encounter in 2061.
I saw Halley in 1986 & it has long been my hope to see it again.
I’ll be 100 in 2061.
And while we’re at it, let’s build a new mission to Halley in the footsteps of ESA’s Giotto, Rosetta, & Comet Interceptor.
To rendezvous with it, fly alongside, & return again in 2134.
Our message to the future.
Artwork: Don E Davis
