ニューヨーク・タイムズのインスタグラム(nytimes) - 3月24日 22時02分

For Nathalie Cabrol, there is much more in the search for life on Mars than answering the old question, “Are we alone?” Billions of years ago, rocks thrown off by comets and asteroids colliding with Earth reached Mars, and vice versa. Perhaps some carried early life. Finding evidence of the transition from prebiotic chemistry to life here on Earth is impossible. But ancient rocks from the time Mars’s crust cooled down are still present on that planet’s surface; if we share our ancestry with Mars, traces of our own life might still be found there. “Mars may hold that secret for us,” Nathalie says. “This is why Mars is so special to us.” She is the director of the Carl Sagan Center at the SETI Institute, the nonprofit organization that seeks to explore, understand and explain the origin of life in the universe. Its work has the glamour of science fiction, but it involves rigorous research and, as she told the @nytmag write Helen Mcdonald, “people who are passionate enough that they can put themselves into dire straits.” Helen accompanied Nathalie on a 26-day expedition to Chile’s high-altitude deserts to test methods of detecting life on Mars. They were joined by the photographer @andrea_frazzetta, who took this photo of the Valle de la Muerte, or Valley of Death, near San Pedro de Atacama. Visit the link in our profile to read about their journey in @nytmag’s #Voyages issue.

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