Many experts had thought sharks didn't exist in the frigid waters of Antarctica.

Conservation and historical organizations sued the Trump administration on Tuesday over National Park Service policies that the groups say erase history and science from America's national parks.

Alysa Liu finished the night in third place, Isabeau Levito finished in eighth and Amber Glenn is in 13th place after a popped jump. That puts extra pressure on all of them for Thursday's medal event.

As U.S. sanctions ease and oil money begins to trickle back after Nicolás Maduro's removal, Venezuelans weigh hopes for recovery against the harsh reality of surviving on wages that barely cover food.

Fast skiers require fast skis. They rely on a team of technicians to wax and prep them for each day's conditions. The U.S. cross-country team has a mobile ski shop that is an unsung hero of their success: Yolanda the wax truck.