Scientists have long suspected the Moon holds sizable reserves of water, secreted as ice in the deep cold of permanently shadowed craters near the poles. Two new studies tell us more about the possible extent of those reserves. One suggests the shadowy polar caches may cover an area equivalent to […]
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The Milky Way’s quiet, introverted monster won’t spin
Many black holes spin much faster than this.
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Ageing chimpanzees choose old friends over new connections
Much like humans, chimps’ friendships change over the course of their lifetime.
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‘Lost river’ ran through the centre of Thar Desert near 172 thousand years ago
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Why Some Easter Island Statues Are Where They Are
Many of the statues not along the coast are in places that featured a resource vital to the communities that lived and worked there.
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Is it possible for anything to be ‘germ-free’?
Microbes can land on surfaces moments after a cleaning.
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Acorn Woodpeckers Fight Long Bloody Territorial Wars
More than 40 of the birds, in coalitions of three or four, may fight for days over oak trees in which to store their acorns.