News
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Planetary ScienceA warmer, fluffier Pluto
Although Pluto has been receding from the sun for more than a decade, planetary scientists have now found that between 1988 and 2002, Pluto’s atmosphere has nearly doubled in size and its temperature has increased by about 1 degree C.
By Ron Cowen -
Health & MedicineViruses, but not bacteria, tied to mental decline
Past infection by multiple common viruses may contribute to cognitive decline in some elderly people.
By Ben Harder -
TechHigh-flying wing destroyed in crash
The unmanned NASA aircraft that holds the world record for high-altitude flight without rocket propulsion recently broke up over the Pacific Ocean.
By Peter Weiss -
Health & MedicineDrug reduces risks for dialysis patients
Kidney-dialysis patients getting the vitamin D drug paricalcitol survive longer than those getting a similar medication called calcitriol.