They always call these "spheres" because it makes people picture something at least the size of billiards balls...
In reality they're the size of pieces of sand, and pieces of a meteor will naturally form into those tiny beads because it's super heated metal crashing from outer space and cooling as they sink to the bottom of the ocean...
Incredibly tiny pieces of a meteor that originated outside of our solar system is interesting.
But Loeb keeps acting like they were made my a form of life outside of our solar system, which there is zero indication of.
Like seeing the Grand canyon, but then insisting it was caused by aliens crashing into the planet.