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01explainer
NASA Is Saying Goodbye to MAVEN. What the Mars Mission Changed Before It Ended
NASA has announced the end of the MAVEN mission after years studying how Mars lost much of its atmosphere. The spacecraft's mission ending does not erase its data, which researchers can continue using.
02explainerA Total Solar Eclipse Is Coming August 12. Most Americans Will Not See Totality
The August 12 total eclipse crosses Greenland, Iceland, northern Russia, Spain and a small part of Portugal. Parts of North America can see a partial eclipse, but the path of totality does not cross the continental United States.