Observatoire des droits humains (anglais seulement)

NASA’s search for life on Mars: a rocky road for its rovers, a long slog for scientists – and back on Earth, a battle of the budget

(Version anglaise seulement)

par Amy J. Williams, Assistant Professor of Geology, University of Florida

Is or was there life on Mars? That profound question is so complex that it will not be fully answered by the two NASA rovers now exploring it.

But because of the literal groundwork the rovers are performing, scientists are finally investigating, in-depth and in unprecedented detail, the planet’s evidence for life, known as its “biosignatures.” This search is remarkably complicated, and in the case of Mars, it is spanning decades.

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