On December 19, 2025, 3I/ATLAS reached its closest distance to Earth, at 1.7 AU (167 million miles). To obtain optimum sensitivity, we observed 3I/ATLAS with the largest steerable single-dish radio telescope in the world, the…
On December 19, 2025, 3I/ATLAS reached its closest distance to Earth, at 1.7 AU (167 million miles). To obtain optimum sensitivity, we observed 3I/ATLAS with the largest steerable single-dish radio telescope in the world, the…