Feustel, who is on ISS as part of Expedition 55/56, was beamed into the opening program via live video, allowing other graduates of the zero-gravity hoovering ceremony to attend, Indiana University said.
An academic dean usually puts the hood on a recipient of a honorary degree, Purdue said in a news release. In this case, Scott Tingle, another astronaut aboard the space station, and a Purdue alumnus, Feustel, put his hood on his shoulders for reasons we can all understand.
Feustel described his Doctor of Science as "a rare privilege" and said the school had "played an important role in my life and achievements".
1; the only university I applied for, hoping and now knowing that this decision changed my life and set me on the path to the stars, "said Friday.
Purdue noted that 24 astronauts graduated from the school, as well as hundreds of other NASA and space industry professionals. Neil Armstrong, the first man to walk on the moon, was a Purdue graduate.
Feustel earned a bachelor's degree in solid earth sciences from Purdue in 1989 and two years later a master's degree in geophysics from the school, Purdue said in a news release.
Feustel also approached his fellow students on Friday, encouraging them and wishing them luck in their efforts.
"You deserve the right to enter the stage," he said, "and I wish you all the opportunity to fly professionally and under the stars for some of you personally."