Note: Neutrinos are notoriously hard to detect. Look down at your hand. Trillions of neutrinos are moving through it at close to the speed of light (unless you happen to be benefiting from the cover of a unifield shield, or sitting in the "shadow" of a neutron star.)
The tiny, swirling clumps of neutronium inside an annie plant cast fairly solid neutrino shadows, and much, much fainter shadows are cast by the oversized post-trans-Uranic atoms used in the construction of annie plants, as well as the spacecraft hulls for folks who can afford such extravagance.
Seeing these shadows, however, requires the ability to catch lots of neutrinos, and figure out where they are and are not getting through.
The Deep Ice Array on Europa does not depend on hundreds of kilometers of ice for neutrino detection. It uses the same field manipulation technology found in unifield shields, allowing for the capture of as large or as small a percentage of passing neutrinos as the scientists working there wish to capture. It's one more way to monitor the health of Sol system's primary (aka "the Sun"), an activity that the hundreds of billions of sophonts depending on that star for a gravitational anchor approve of.
At any rate, the illustration of Neosynchronicity's neutrino shadow is stylized for enhanced readability, and shows that Ennesby isn't afraid to do some sky-writing with beams of neutrinos.