HUMTRONICS

WASHINGTON ,  Mark Zuckerberg , Facebook founder and chief executive officer, will speak with three astronauts currently living and working aboard the International Space Station at  12:55 p.m. EDT Wednesday, June 1 . The Earth-to-space call will be seen live on NASA's Facebook page. During the 20-minute Facebook Live video call with NASA astronauts  Tim Kopra  and  Jeff Williams , and ESA's (European Space Agency's)  Tim Peake , Zuckerberg will ask questions submitted on NASA's Facebook page. To ask a question and watch the call, visit NASA's Facebook page at: http://www.facebook.com/nasa The International Space Station serves as the world's leading laboratory for conducting cutting-edge microgravity research, and is the primary platform for technology development and testing in space to enable human and robotic exploration of destinations beyond low-Earth orbit, including asteroids and Mars. For more information about the crew and research on...

Media are invited to watch as almost  80 teams  from  the United States ,  Italy ,  Germany ,  India ,  Mexico ,  Colombia  and  Russia , as well as  Puerto Rico , compete in NASA's annual Human Exploration Rover Challenge,  April 8 -9  at the U.S. Space & Rocket Center in  Huntsville, Alabama .

The following is a statement from NASA Administrator  Charles Bolden  on the retirement of astronaut  Scott Kelly :