SPACE.com: NASA’s Spirit rover landed on Mars on 4 January 2004. This week, if Spirit wakes up from a likely power-saving safe-mode, it will surpass Viking’s record mission of six years and 116 days on the Martian surface. If Spirit remains in hibernation, the record will belong to its sister rover Opportunity, which landed on Mars 11 days later and is still operating.
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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