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Deep-Sea Fish Use Hydrothermal Vents to Incubate Eggs…

Some deep-sea skates — cartilaginous fish related to rays and sharks — use volcanic heat emitted at hydrothermal vents to incubate their eggs, according to a new study in the journal Scientific Reports. Because deep-sea skates have some of the longest egg incubation times, estimated to last more than four years, the researchers …

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NASA Tests Atomic Clock for Deep Space Navigation…

In deep space, accurate timekeeping is vital to navigation, but not all spacecraft have precise timepieces aboard. For 20 years, NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, California, has been perfecting a clock. It’s not a wristwatch; not something available in a store. It’s the Deep Space Atomic Clock (DSAC), an instrument …

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