"Our interpretation of all this is that Ceres used to be an ocean world like Europa, but with a dirty, muddy ocean," said Sori. "As that muddy ocean froze over time, it created an icy crust with a ...
A comet named C/2023 A3 Tsuchinshan–ATLAS is making an 80,000-year orbit around the sun. Some have dubbed it the "comet of the century" because of its long tail and how brightly the comet might shine ...