I was reading the APOD article, and clicked the link for “long lost electron”.
Apparantly, some Wisenheimer couldn’t resist linking to a particle physics “joke”:
The Hydrogen Atom’s Lament
A hydrogen atom and a helium atom go into a bar.
The hydrogen atom is clearly upset and moans, “I’ve lost my electron, my only electron!”
The concerned helium atom says, “Just calm down now … are you sure you’ve lost it?”
The hydrogen atom replies, “Yes, I’m positive!”
(Later, a neutron walks in to the same bar. He sits down and says to the bartender,
“Hey, how much for a beer?” The bar tender looks at him and says, “For you, no charge!”)
Wouldn’t that make him a neutron?
djm
With research assistance from an amateur astronomer, I’ve labeled some of the most brilliant stars of the California Nebula.
Of course there are many more I haven’t labeled!
It’s impossible to see at this resolution, but the lovely star Feadoginnia has a small planet.
Also, I was informed of several stars that are missing from the map! Eskin M is located very close to MT Sapientissimus; Alanum is near Eilambylia. Also missing are Flutera SB, Cromus D, Wokhill MI, and Pedestrans Hydrocalorens.
Let me know if there’s others!
Edited to add more stars!
Ah yes, the famous Dr. Weisenheimer!
Another one of his jokes–
Why did the electrons cross the road?
Because someone rubbed a balloon on the chicken.
Psst, fearfaoin-- gotta keep in mind–
lots of old geezers have hearing problems.
And playing the pipes all those years has just made things worse!
Yes, but what I read quite clearly at the time was electron.
djm
Pssst, fearfaoin-- the vision starts to go, too.
Just humor him
It took me awhile for the full genius of this to hit me. Most amusing.
Thassa good’un! 
So let 'em ionize. Who cares anyway?
The Elect-Rons were running a negative campaign.
But the New-Trons will make a clean break.
djm
Hey, I’m a star! I always wanted to be a star. Do I get my own celestial dressing room?
Instead, I fear I’m just a big ball of hot gas. And often occluded by my evil binary twin, MT Stultissimus.
so much depends on perspective…