Captain Scott Kelly returned safely toHouston, Texasearly Thursday morningfollowing a record-setting yearlong mission aboard the International Space Station.

Dr. Jill Biden was there to welcome him home, along with a group of students touring NASA Mission Control Center:

Welcome home @stationcdrkelly! #YearInSpace https://t.co/99hbk2x3XV pic.twitter.com/FWb0K4SUxj

— Dr. Jill Biden (@DrBiden) March 3, 2016

They were joined by Assistant to the President for Science and Technology Dr. John Holdren, NASA Administrator Charles Bolden, Scott Kelly’s identical twin brother and former NASA astronaut and shuttle commander Mark Kelly, former Congresswoman Gabby Giffords, and other members of Scott Kelly’s family.

While aboard the International Space Station, Scott conducted studies on technology development and comparedmedical data from himself and his twin brother astronaut Mark Kelly to see how the human body responds over time in space. This research will help move our country forward toward President Obama’s goal of sending astronauts to Mars by the 2030s.

Learn more about his mission at NASA.gov.