Mark and Scott Kelly, twin brothers and former NASA astronauts, spoke to "CBS Mornings" about how the agency is set to lose ...

FROM roiling storms, rare comets and volcanic eruptions, there is lots to see aboard the International Space Station (ISS). Fortunately, astronauts are not only equipped with suites of scientific ...

Kelly’s 340-day mission eclipsed the previous U.S. record-long spaceflight of 215 days, set by former astronaut Michael Lopez-Alegria aboard the space station in 2007.

Scott Kelly is a former NASA astronaut and retired United States Navy Captain, U.S. spaceflight record holder and an experienced test pilot having logged more than 15,000 hours of flight time in ...

Growing plants in space is no longer a distant dream. Scientists and astronauts have been experimenting with growing plants in orbit. NASA astronaut S ...

For 340 days, Scott Kelly circled the Earth aboard the International Space Station, gathering data about himself. He drew blood from his arms. He saved his urine. He played computer games to test ...

-- Astronaut Scott Kelly retired today after 20 years with NASA and spending a year in space. During his career, Kelly completed four separate missions in 1999, 2007, 2010 and 2015, accruing 520 ...

After Tuesday night's State of the Union address, most Americans know two things about Scott Kelly. First, he's going to space for a year, and second, President Obama wants him to "Instagram it ...