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Astronomers believe the young Milky Way once swallowed a dwarf galaxy
Astronomers believe they've mapped an important sequence of events that shaped our galaxy 10 billion years ago. In a paper published in Nature Astronomy today, researchers from the Instituto de Astrofisica de Canarias (IAC) share their findings that a dwarf galaxy, Gaia-Enceladus, once collided and merged with the early Milky Way. Their discovery offers a new understanding of how the Milky Way formed.
NASA’s Cassini data shows Titan’s lakes are stranger than we thought
NASA's Cassini-Huygens spacecraft made its fateful plunge into Saturn's atmosphere in 2017, but scientists are still using the data it sent home to make surprising discoveries. Two papers published in Nature Astronomy reveal new information about the lakes on Titan, Saturn's largest moon. The small liquid lakes in Titan's northern hemisphere are more than 100 meters deep, perched atop plateaus and filled with methane. They also appear to be seasonal. And the bodies of liquid on one side of the northern hemisphere are completely different than those on the other side.
