Researchers recently detected an "ultra-high-energy" cosmic ray, which is the most powerful since the famous "Oh My God" particle was detected in 1991. They have no idea where it came from.
Researchers have detected one of the most powerful cosmic rays ever seen slamming into Earth — but they have no idea what caused it or where it came from. The extremely energetic particle, which has been named after a Japanese goddess, arrived from the direction of a void in the universe where almost nothing is known to exist, according to new research.
Cosmic rays are highly energetic particles, mainly consisting of protons or helium nuclei, that are constantly raining through every square inch of the universe (including our bodies). But a small subsection of cosmic rays, which hit Earth roughly once per square mile every year, are accelerated to even greater energy levels by some of the universe's most intense phenomena.
These extra-energetic particles, known as "ultra-high-energy cosmic rays," have at least one exa-electron volt (EeV), or 1 quintillion (1 followed by 18 zeros) electron volts, of energy, which is around a million times more energetic than the fastest particles from human-made particle accelerators.
On May 21, 2021, researchers detected one of these supercharged cosmic rays with the Telescope Array project — a detector made of individual substations covering more than 270 square miles (700 square kilometers) in Utah. This particular particle had a whopping 244 EeV of energy, which makes it the most energetic cosmic ray since the "Oh My God" (OMG) particle in 1991 — the most powerful cosmic ray ever detected, which had an energy of 320 EeV and traveled at more than 99.9% the speed of light.
Seems like a good way to get smited, naming random (probably evil) energy that came from nowhere space (but not the sun) after the head goddess of Shintoism. Maybe Susanoo or Orochi would have kept the theme while not angering a top tier god.
Saying the OMG particle was traveling more than 99.9% of the speed of light is a bit like saying the volume of the sun is greater than 1 cubic meter. It's not false but Really undersells the real number, which is even listed in the article they linked about it: 99.99999999999999999999951% of C.
Could be a bunch of stuff that was hyper-accelerated by slingshotting off a black hole. Those are difficult to detect at the best of times, it would make sense if that void was just full of the things.
Maybe the facts that the beam is so energetic and that it comes from a seemingly empty spot are closely related. Law of squares. If the remains of the beam that arrive here are still the strongest ever measured, guess what power that beam had a gazillion lightyears away, and what such a powerful beam might have done to anything existing there.
It wasn't a beam, it was a single particle slamming into the atmosphere.
When it comes to particles like this, it's yes/no on whether they arrive. They don't lose energy as they travel.
As for the source, it would have been energetic to say the least. Less sterilising planets and more eating large stars like smarties.
Amusingly the actual energy was around 4 joules. An obscene energy for a particle, but tiny on human standards. (About 1 second of phone battery usage)
Yea, "beam" was a misnomer from my side. I basically meant "whatever part from that source hit us". It could just be an absolute singular event, accellerated by a cosmic cataclysm or doing a swing-by maneuver around an event horizon. I simply assumed an omnidirectional source.
When it comes to particles like this, it’s yes/no on whether they arrive. They don’t lose energy as they travel.
They don't? As my physics teacher once said: "Gravity does not sleep." Any particle with mass interacts with the rest of the Universe (within limits, OK), so it can be assumed that it actually lost energy on the way. Which, in a way, makes it even more scary.
The "far away" thing was about particles spreading to the law of square, and how many of those particles near the source where they would be much more common could do to whatever had been there. Imagine something like Earth getting hit by, e.g. a bucket full of this "stuff".
4J is a lot for a single particle, where one usually thinks in multiples of 1.6x10⁻¹⁹J...
Stars don't pop into existence from nothing. They form from large clouds of gas. We also understand physics enough to know how that interaction happens to know that isn't it. Physics has been studied for a long time. Unexplained things usually aren't explained by simple guesses. It's probably something either much stranger, or much more mundane, like an error somewhere.
No longer in need of nuclear plants, the furries have now forsaken them. Because of this, no one is left to maintain the software used in them. With the lack of this technology, all nuclear plants rapidly fall into a state of pending meltdown.
I think the software itself is gold standard and does not change, so that wouldn't be the case. The technitians, on the other hand... are not something you can get from your corner store.
Oh come on. I'm all for shorthands, but 99.9% is child's play that can be accomplished in very modest linear accelerators. The OMG particle was traveling at 99.99999999999999999999951 % c.
Sometimes science can get a bit silly. The OMG particle literally got its name because someone circled some data and wrote "OMG!" beside it... And then people just kept referring to it that way.