The Arctic Sun has long since dipped below the horizon, plunging the world into 24 hours of darkness.
Imminent loss of NASA's Aura and Canada's SCISAT will severely diminish scientists’ ability to monitor ozone-depleting substances in the stratosphere.
A pair of planetary scientists at the University of California, working with a colleague from the California Institute of ...
A surprising new study suggests the intense radiation from active galactic nuclei from a black hole might support life ...
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