NASA Twins Study spots thousands of genes toggling on and off in Scott Kelly
When astronaut Scott Kelly returned to Earth after a year floating about the International Space Station, he was noticeably different from his identical twin, Mark Kelly.
WATCH: Former Rep. Gabrielle Giffords, retired astronaut Mark Kelly call for stronger gun laws
Former Rep. Gabrielle Giffords will speak at 1 p.m. ET Monday in Washington, D.C., with her husband, retired NASA astronaut Mark Kelly. Watch their remarks here.
NASA releases first results from ‘Year In Space’ twin study
The first results from NASA’s Year in Space brothers are in, and show glimpses of how stressful a trip to Mars could be for the human body.
10 stellar tweets to mark Scott Kelly’s record-breaking year in space
Scott Kelly returns to Earth on Tuesday after spending a record-breaking year in space. His 340-day enterprise marks NASA's longest spaceflight and serves as critical prep-work and research for future Mars exploration.
As of today, International Space Station Commander Scott Kelly has spent more days off the planet than any other American. With 216 days in orbit, he sets the American record for most days spent space.
What are the long-term effects of living in space? Astronaut Scott Kelly is now halfway through a year-long mission. In our NewsHour Shares video of the day, NASA offers a progress report, comparing Scott with his twin brother, retired astronaut…
Following recent mass shootings, NewsHour begins a series called “Guns in America” where we will talk with people intimately involved in the gun control debate. Tonight we speak to author and advocate Mark Kelly, husband of congresswoman Gabrielle Giffords, who…
WASHINGTON — A Maryland man who returned home last month after spending five years imprisoned in Cuba will have a prime viewing spot for President Barack Obama's State of the Union address: a seat near first lady Michelle Obama.
Google, YouTube and the PBS NewsHour took you aboard space shuttle Endeavour and the International Space Station for a live interview with Commander Mark Kelly and crew. Watch the full interview here.
