Cosmic Joke

65,000 years ago
A star’s heart exploded,
Spreading the message of its death
In neutrinos and fire.

My husband was the first to know,
But never knew he knew,
Until the cosmic Humorist
Decided to tell him.

He has wondered over the years,
Yet avoids the answer.
What was the original joke
If he is the punch-line?

©Ardelle Hollis Ray