NASA astronaut from historic spacewalk becomes first woman to reach deepest point in ocean
Former NASA astronaut Kathryn D. Sullivan, the first American woman to walk in space, is now also the first woman to reach the deepest point in the ocean.Sullivan, an oceanographer and veteran of three space shuttle flights, is the first person to achieve both feats. After returning from a nearly 7 mile dive to Challenger Deep in the Mariana Trench, Sullivan called her colleagues at the International Space Station, which is in orbit 254 miles above Earth. […]
