Three particle stories

Aurora Borealis

On November 20th we were supposed to have a chance to see the Aurora borealis here in Boston. Unfortunately, the weather was not good enough. But there was a story in CNN:


Direct Media Links:
Webm, Ogg Ipod

Axions

Nature article with a rather boring title "Axionic charge-density wave in the Weyl semimetal (TaSe4)2I" in Nature volume 575, pages315-319, 2019 tells about a correlated topological phase. Well, one can also make it sound more exciting: as here in livescience.com: "Physicists Have Finally Seen Traces of a Long-Sought Particle. Here's Why That's a Big Deal", an article which starts with:
The researchers simulated early galaxy formation in the early universe
under three dark matter scenarios: a universe filled with cold dark matter
(far left); warm dark matter (center); and fuzzy dark matter (far right).
Scientists have finally found traces of the axion, an elusive particle
that rarely interacts with normal matter. The axion was first predicted
over 40 years ago but has never been seen until now.
Scientists have suggested that dark matter, the invisible matter that
permeates our universe, may be made of axions. But rather than finding
a dark matter axion deep in outer space, researchers have discovered
mathematical signatures of an axion in an exotic material here on Earth.
The newly discovered axion isn't quite a particle as we normally think
of it: It acts as a wave of electrons in a supercooled material known
as a semimetal. But the discovery could be the first step in addressing
one of the major unsolved problems in particle physics.
Sounds interesting. It might also be one of the biggest farts ever produced in science journalism. At least it has all the buzz words: "Dark matter", "Universe", "biggest unsolved problem in particle physics", "galaxy formation". And a mysterious picture is also important:

The fifth force


From this CNN article:
Essentially the entirety of physics centers on four forces that
control our known, visible universe, governing everything from the
production of heat in the sun to the way your laptop works. They are
gravity, electromagnetism, the weak nuclear force, and the strong force.
New research may be leading us closer to one more.  Scientists at the
Institute for Nuclear Research at the Hungarian Academy of Sciences
(Atomki) have posted findings showing what could be an example of that
fifth force at work.  The scientists were closely watching how an excited
helium atom emitted light as it decayed. The particles split at an
unusual angle, 115 degrees, which couldn't be explained by known physics.
....
More sightings of the fifth force could lead to scientists settling 
on a specific name for it, understanding its workings more deeply, and 
developing practical applications for how to harness its power.  
They're leading us closer to what's considered the Holy Grail in physics, 
which Albert Einstein had aimed at but never achieved.  Physicists hope 
to create a "unified field theory," which would coherently explain all 
cosmic forces from the formation of galaxies down to the quirks of quarks.
But the universe isn't giving up its secrets easily.  "There's no reason
to stop at the fifth," Feng said. "There could be a sixth, seventh,
and eighth force."



Well, also this has all the buzz words and name droppings which are needed: "holy grail", "Albert Einstein", "unified field theory", "formation of galaxies", the "quirks of quarks". Well, maybe there is even a sixth seventh or eighth force. Well, here is a new idea: Maybe, just maybe, there could be even a ninth force! Wouldn't that be exciting?