NASA Rehearsed 4 Atacama Rover Campaigns Testing 2-Meter Life-Detection Drill
Updated
Updated · spacedaily.com · Jul 28
NASA Rehearsed 4 Atacama Rover Campaigns Testing 2-Meter Life-Detection Drill
1 articles · Updated · spacedaily.com · Jul 28
Summary
Four field seasons from 2016 to 2019 sent NASA’s K-REX2 rover into Chile’s Atacama Desert to test whether autonomous drilling, sample handling and onboard analysis could work together remotely.
A 2-meter Honeybee Robotics drill fed instruments including Spain’s SOLID immunoassay detector, the PISCES capillary electrophoresis analyzer and a Phoenix-derived wet chemistry testbed; the LITMS mass spectrometer stayed a standalone field test.
The Atacama is the rehearsal ground because its hyperarid soils can mimic Mars for life detection: one 4-year dataset near Yungay found just 2.3 millimeters of rain and only 65 to 85 hours of liquid water.
That analogy is difficult rather than reassuring—Atacama soils can break down organics through non-biological processes, echoing the ambiguity of Viking’s 1976 Mars results while still harboring sparse microbial life.
A 2023 Red Stone study sharpened the warning, finding organics so scarce that testbed versions of current and planned Mars instruments struggled to detect them.