NASA astronaut and engineer Karen Nyberg joins you from the International Space Station . and I can just float there . Nyberg discusses space exploration , current events , women in space . She answers questions submitted from you via CNN.com , Facebook and Twitter .
NASA astronaut and engineer Karen Nyberg joins you from the International Space Station . Nyberg discusses space exploration , current events , women in space . She answers questions submitted from you via CNN.com , Facebook and Twitter .