A space experiment suggests that Mars rovers must dig deep to find life

NASA’s Mars rover should not expect to detect biomarkers on the Red Planet’s surface, according to a new study based on an experiment aboard the International Space Station (ISS) that suggests ultraviolet radiation will break up these molecules after just a year or two.

Both Curiosity of And the perseverance Use of a Raman spectrometer for Identification of organic compounds And maybe biological molecules? MarsSurface. Raman spectroscopy uses lasers to excite the particles, and then the way these particles scatter light tells scientists what kind of particles they are. In particular, it is sensitive to organic compounds, which is why it is a key tool for both roving compounds.