'Junk fees' beware.

The suspicious plane cargo was flagged by the Hong Kong authorities.

Delivery trucks, school buses, and other short-haul vehicles will electrify much faster than big rigs, easing air pollution in urban neighborhoods.

NASA shared an eerie view of the moon's shadow passing over Earth.

Charlemagne potentially had major control over silver coins in the mid-7th century.

We headed into the path of totality in a techy open-air Audi S5 Cabriolet.

April 8th's total solar eclipse began on the Pacific coast of Mexico and ended off the Atlantic coast of Canada.

Researchers developed a hack to automatically adjust printer parameters as needed to use algae, wood resins, and more.

Generation ships offer a tantalizing possibility: transporting humans on a permanent voyage to a new home among the stars.

Even a century ago, astronomers went to great lengths not be foiled by clouds.