Browsing Posts of 'Liza Lester'
End of routine acquisitions for the Thematic Mapper, secondary sensor is still sending data. By Liza Lester, ESA communications officer. The US Geological Survey’s Landsat 5 Thematic Mapper has been a faithful friend to ecologists. Recoding image data in seven bands covering visible, thermal, and infrared spectra, the satellite has shown us retreating glaciers, advancing [...]
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by Liza Lester, ESA communications officer A honey bee (Apis mellifera) afflicted with Varroa destructor, a parasitic mite that sucks away its vital, blood-like hemolymph, often passing along viruses in the process, and leaving open wounds. The mite spreads by bee-to-bee contact, accelerated by yearly circuits of agricultural bee broods transported to pollinate almonds and [...]
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by Liza Lester, ESA communications officer. Face of a grizzly bear (North American brown bear, Ursus arctos horribilis); M Stouffer, 1974 courtesy of the National Park Service. AFTER co-authoring a 2005 paper imagining “Re-wilding North America” with giant Bolson tortoises, camels, horses, cheetahs, elephants and lions, Harry Greene received a lot of hate mail. Corresponding [...]
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Is science the foundation of democracy? DICK Taverne is a career politician, currently a member of the British House of Lords, and champion of science in public life (married, perhaps not incidentally, to a microbiologist for over fifty years). In a lecture at the Royal Society of Medicine in London last week, he explained why [...]
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by Liza Lester, ESA communications officer WE don’t typically think of the middle of the US as earthquake country, but small earthquakes, many just on the edge of perception, send shock waves through the prairies and southlands more than twenty times a year, on average, and have done so since regular monitoring began circa 1970. [...]
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