NASA rover worked on by P.E.I. scientist lands safely on Mars NASA's Perseverance rover safely landed on Mars just before 5 p.m. AT Thursday. A scientist originally from Cornwall, P.E.I. spent a long time waiting for this day. Social Sharing CBC News · Posted: Feb 18, 2021 1:00 PM AT | Last Updated: February 18 P.E.I.’s Peter Willis says the rover’s landing on Mars, expected for 4:55 p.m. AT today, is ‘something I never imagined I'd get to participate in.’ Here he stands in front of a duplicate model of a Mars rover. (Submitted by Peter Willis)