Analysis of the first seven years of data from a NASA cloud-monitoring mission suggests clouds are doing less to slow the warming of the planet than previously thought.
Corals growing in areas of the Great Barrier Reef where fishing is banned were found to be more likely to survive bleachings, cyclones, coral diseases and the voracious effects of invasive starfish.
A simple laser beam could disrupt aliens' observations of Earth, making it look like there's nobody home on the third rock from the sun, a new study suggests.
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