It's just a ship dropping out of warp a safe distance from our system. While inconvenient, it's considered best practice to drop out well away from the system's center to shed the particles you've accumulated in your warp bubble during transit. They are extremely energetic and can cause immense damage if released irresponsibly close to an inhabited planet. This is especially true when visiting a primitive world that hasn't set up any sensible warp safety systems.

It's from one of them Laconian magnetar-class battleships

This is the best summary I could come up with:

Astronomers have detected a rare and extremely high-energy particle falling to Earth that is causing bafflement because it is coming from an apparently empty region of space.

“You trace its trajectory to its source and there’s nothing high energy enough to have produced it,” said Prof John Matthews, of the University of Utah and a co-author of the paper in the journal Science that describes the discovery.

Toshihiro Fujii, an associate professor at Osaka Metropolitan University in Japan, said: “When I first discovered this ultra-high-energy cosmic ray, I thought there must have been a mistake, as it showed an energy level unprecedented in the last three decades.”

Cosmic rays, echoes of such violent celestial events, rain down on to Earth nearly constantly and can be detected by instruments, such as the Telescope Array observatory in Utah, which found the Amaterasu particle.

But particles with Oh-My-God or Amaterasu-level energy would be expected to blast through intergalactic space relatively unbent by galactic and extra-galactic magnetic fields, meaning it should be possible to trace their origin.

Once completed, 500 new scintillator detectors will expand the Telescope Array across 2,900 km2 (1,100 mi2 ), an area nearly the size of Rhode Island and this larger footprint is expected to capture more of these extreme events.

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equivalent to the energy of a golf ball travelling at 95mph

So I am curious about this comparison. If this particle had hit you square on the top of your head, rather than the array they built to detect it... would you even know it? Would it kill you? Make you uncomfortable? What?

Lizzid peeple

They just shot our golden disk back to the library lol. No wonder they got bored by this record. Send some Frank Sinatra or something next. Let's show them the classics.

It's just styropyro, he tried out a new mixture on his golfball cannon

Must be that jewish space laser that Greene lady was going on about.

When they say "local void", do they mean like a cone extending in that direction with nothing behind it or a space with nothing inside it but stuff behind it?

If it's the former, what is going on with that?

If it's the latter, couldn't this have traveled from one of the things behind it?

A Magnetar having an accident, as source?

Alien trolls?

It’s a yeeeet ball.