WASHINGTON — The giant black hole at the center of the Milky Way may be vaporizing and devouring asteroids, which could explain the frequent flares observed, according to astronomers using data from NASA's Chandra X-ray Observatory.
WASHINGTON — The giant black hole at the center of the Milky Way may be vaporizing and devouring asteroids, which could explain the frequent flares observed, according to astronomers using data from NASA's Chandra X-ray Observatory.
WASHINGTON — In the first comprehensive satellite study of its kind, a University of Colorado at Boulder-led team used NASA data to calculate how much Earth's melting land ice is adding to global sea level rise.
8 February 2012 – A new United Nations-backed survey has found that most workers in Afghanistan’s brick kilns are bonded child labourers, and calls for a strategy that will both provide relief to bonded families and help them escape the cycles of debt, dependence and poverty.