Former astronaut twin brothers Mark and Scott Kelly on NASA cuts and challenges of being on ISS | NYGazet

Mark and Scott Kelly, twin brothers and former NASA astronauts, spoke to "CBS Mornings" about how the agency is set to lose 20% of its workforce, the SpaceX flight and more.

Twin brothers and former NASA astronauts Mark and Scott Kelly have each flown four missions and were part of NASA's twin study to research the impact of spaceflight on the human body. Hours before SpaceX planned to launch another crew to the Internat... [2426 chars]