Scientists have never directly detected dark matter, but some wonder if one high-energy detection in 2023 could be a rare ...

One of the KM3NeT optical modules that detect Cherenkov radiation. (Image credit: Courtesy KM3NeT) It would take an extremely energetic cosmic ray to be able to produce a neutrino like KM3-230213A.

Of KM3NeT’s two detectors, one is dedicated to more mundane atmospheric neutrinos. The other, dubbed ARCA, is located under nearly 3.5 kilometers of water off the coast of Sicily and is designed ...

A Cubic Kilometre Neutrino Telescope, or KM3NeT, detection unit is shown before being lowered to the ocean floor in the Mediterranean Sea. KM3NeT. Sign up for CNN’s Wonder Theory science newsletter.

KM3NeT looks about as much like a traditional telescope as, say, a rhinoceros does. It consists of indented spheres of metal standing guard over smaller glass spheres hanging from strings.

Scientists have detected the highest energy ghost particle neutrino ever, but did it come from a supermassive black hole particle accelerator aiming its jet straight at Earth or from a cosmic fossil?

Amazingly, KM3NeT detected this particle while under construction, using only 20 percent of its photodetectors. Neutrinos lie at the frontier of scientific unknowns about the universe.

KM3NeT / Courtesy of Arne de Laat Photograph During deployment campaigns, scientists must be at the absolute top of their game. Every second on the ship costs approximately $1, says Biagi.

KM3NeT consists of two detectors. The first, called ORCA, is 8,038 feet (2,450 meters) deep off the coast of France and is designed to study how neutrinos oscillate between different types of ...

A Cubic Kilometre Neutrino Telescope, or KM3NeT, detection unit is shown before being lowered to the ocean floor in the Mediterranean Sea. KM3NeT. Sign up for CNN’s Wonder Theory science newsletter.

Scientists have detected the highest-energy ghost particle neutrino ever, but did it come from a supermassive black hole particle accelerator aiming its jet straight at Earth, or from a cosmic fossil?

One of the KM3NeT optical modules that detect Cherenkov radiation. | Credit: Courtesy KM3NeT It would take an extremely energetic cosmic ray to be able to produce a neutrino like KM3-230213A.