ESA’s Rosetta Sees Active Pits on Comet 67P/Churyumov-Gerasimenko

In a new study published online in the journal Nature, 18 almost circular pits have been identified in the northern hemisphere of 67P/Churyumov-Gerasimenko. The pits are a few tens to a few hundreds of feet in diameter and extend up to 690 feet (210 meters) below the comet’s surface. These pits are active, and probably [...] —> Read More