Frequent flier programs are a staple among major U.S. carriers, but according to a recently released analysis, some are better than others. The loyalty program for Alaska Airlines notched the title of ...

President Donald Trump’s administration has moved to eliminate environmental safeguards on more than half of the nation’s ...

Geodynamic models say deep mantle flow from the long-subducted Farallon slab is likely behind the massive underground “drips” ...

Seismic mapping of North America has revealed that an ancient slab of crust buried beneath the Midwest is causing the crust ...