Why does lightning zigzag? At last, an answer to the mystery

Everyone has seen lightning and marveled at its power. But despite its frequency—about 8.6 million lightning strikes occur worldwide every day—why lightning proceeds in a series of steps from the thundercloud to the earth ...

Advances in predicting the locations of Great Basin wildfires

Scientists with the U.S. Department of Agriculture's Agricultural Research Service (ARS) and the University of Montana have developed a way to forecast which of the Great Basin's more than 60 million acres have the highest ...

NASA delays final test for moon shot

The latest test of NASA's giant Moon rocket SLS has been suspended to allow for a SpaceX rocket to launch later this week, the US space agency announced Tuesday.

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