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At least 16 people were killed and dozens were wounded Wednesday when Russian shelling struck a market in a city

U.S. Secretary of State Anthony Blinken met with Ukraine's foreign minister, Dmytro Kuleba, on Wednesday after arriving in Kyiv on

Four astronauts returned to Earth early Monday after a six-month stay at the International Space Station. (Sep. 5) AP

An advanced new set of military satellites blasted into orbit Saturday for the U.S. Space Force after a two-day delay

U.S. security officials say Ukrainian armed forces have made "notable progress" in their advance against Russian positions in the south

Combat Swimmer Stroke - breakdown. Kick off the wall, double arm pull, CSS stroke cycle of Pull, breathe, kick, glide.

Will use a quick 5 to 10 minute drill that simulates the Navy SEAL training drownproofing test as a warm

Under Water Swim Stroke - breakdown.

Too many people tell me that because they are short that they cannot swim as fast as a taller person

Fitness expert and former Navy SEAL Stew Smith demonstrates double crunches.