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By Seth Borenstein The Associated Press

Scientists witness huge cosmic crash, find origins of gold

WASHINGTON — It was a faint signal, but it told of one of the most violent acts in the universe, and it would soon reveal secrets of the cosmos, including how gold was created.

Astronomers around the world reacted to the signal quickly, focusing telescopes located on every continent and even in orbit to a distant spot in the sky.

Science Says: Fast-melting Arctic sign of bad global warming

WASHINGTON — One of the coldest places on Earth is so hot it’s melting.

Glaciers, sea ice and a massive ice sheet in the Arctic are thawing from toasty air above and warm water below. The northern polar region is heating up twice as fast as the rest of the planet and that’s setting off alarm bells.

2016 weather report: Extreme and anything but normal

WASHINGTON — Last year’s global weather was far more extreme or record-breaking than anything approaching normal, according to a new report.

The U.S. National Oceanic and Atmospheric Administration on Thursday released its annual checkup of the Earth, highlighting numerous records including hottest year, highest sea level, and lowest sea ice in the Arctic and Antarctica.