The cryobot was invented by German physicist Karl Philberth, who first demonstrated it in the 1960s as part of the International Glaciological Greenland Expedition (EGIG), achieving drilling depths in excess of 1,000 metres (3,300 ft).
In 2011, NASA awarded Stone Aerospace $4 million to fund the Phase 2 of project VALKYRIE (Very-Deep Autonomous Laser-Powered Kilowatt-Class Yo-Yoing Robotic Ice Explorer).
[8][failed verification – see discussion] Phase 2 of project VALKYRIE consisted of testing a scaled-down version of the cryobot in Matanuska Glacier, Alaska in 2015.
[9] Following the success of these missions, Phase 3 of the project is then used a full-scale version of the cryobot to melt its way to a subglacial lake, collect samples, and then resurface.
[10] Stone Aerospace integrated their ARTEMIS submersible with the VALKYRIE laser technology to develop a sophisticated cryobot called SPINDLE (Sub-glacial Polar Ice Navigation, Descent, and Lake Exploration).