Earth's atmosphere may be source of some lunar water

Hydrogen and oxygen ions escaping from Earth's upper atmosphere and combining on the moon could be one of the sources of the known lunar water and ice, according to new research by University of Alaska Fairbanks Geophysical ...

In heat emergency, Greece adds checks for fires, power cuts

Greek authorities ordered additional fire patrols and infrastructure maintenance inspections Friday as the country grappled with a heat wave fed by hot air from Africa that is expected to last more than a week.

'Extreme' wildfires and heavy smoke grip western US and Canada

A brutal start to the wildfire season in the western United States and Canada worsened Thursday as a massive Oregon blaze exploded in dry, windy conditions and a new California blaze threatened communities devastated by the ...

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