Reuters: An examination of the first material plucked from a comet is forcing scientists to rethink the nature of the frigid emissaries from the deepest reaches of our solar system, as well as the early solar system itself.Reporting their findings on Thursday, scientists who examined tiny grains retrieved by NASA’s Stardust spacecraft from comet Wild 2 (pronounced “vilt”) in 2004 found the comet, as expected, contained material from outside the solar system.
The finding that the Saturnian moon may host layers of icy slush instead of a global ocean could change how planetary scientists think about other icy moons as well.
Modeling the shapes of tree branches, neurons, and blood vessels is a thorny problem, but researchers have just discovered that much of the math has already been done.
January 29, 2026 12:52 PM
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