News
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Planetary ScienceScientists probe fresh Martian meteorite
Rock holds clues to Red Planet’s atmosphere and surface conditions.
By Tanya Lewis -
Health & MedicineTomato compound might prevent some strokes
Men with high blood concentrations of lycopene are less vulnerable, a study finds.
By Nathan Seppa -
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AnimalsEarly arthropod had a fancy brain
A 520-million-year-old fossil of a segmented animal shows that sophisticated central nervous systems are surprisingly ancient.
By Erin Wayman -
ChemistryDepths hold clues to dearth of xenon in air
The gas doesn’t dissolve well in minerals deep inside Earth, a discovery that may explain why it’s also scarce in the atmosphere.