Astronaut Mark Vande Hei trains for a spacewalkjsc2017e029829 (March 15, 2017) --- Astronaut Mark Vande Hei trains for a spacewalk at the Johnson Space Center in March of 2017. Image Credit: NASA/James Blair Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/astronaut-mark-vande-hei-23909424888-o/Copy URL to clipboard> DownloadShareTagsInternational Space StationTakenMarch 15, 2017Image CreditNASA/James BlairSize5238x3492px