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Bolshaya Udina volcano

SLEEPING GIANT  Bolshaya Udina, a volcano on Russia’s Kamchatka Peninsula, has long been inactive. Some scientists suggest the volcano is waking up, based on nearby seismic activity. But others say those rumblings may be linked to active volcanoes in the region.

artist's rendering of Arctic hyenas

ARCTIC HYENAS  New fossil evidence shows that hyenas lived in the Arctic during the last ice age, as depicted in this illustration.

superflare illustration

HOT MESS  Scientists have found superflares erupting from older, sunlike stars, not just from young stars (one illustrated with an exoplanet).


SHINE ON  Diamond could be used in particle detectors to spot lightweight types of dark matter particles, if they exist.

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