An expedition in the sea off the coast of Papua New Guinea discovered 50 tiny spherules in June that could possibly be the first interstellar objects found on Earth.
The expedition was led by Harvard University Astrophysicist Avi Loeb, and Rob McCallum of EYOS Expeditions coordinated the expedition, which lasted for almost two weeks, according to a statement.
The spheres are believed to be fragments of a basketball-sized meteorite that fell in the area in 2014, said the statement. After calculating the estimated place of its crash, Mr. Loeb’s team found 50 tiny spherules ranging in size between 0.1–1 mm in diameter (0.004–0.04 inches). And they found them about 6,500 feet underwater….