Combining data from several of the Perseverance rover’s spectroscopic sensors offers a more accurate means to classify carbonate minerals that may hold hints of ancient life.

Sarah Derouin
Sarah Derouin is a freelance science journalist and editor who has been writing for Eos since 2017. She has a doctorate in geology from the University of Cincinnati and is a graduate of the Science Communication Program at University of California, Santa Cruz. Sarah has written for New Scientist, Scientific American, Popular Mechanics, Science, EARTH Magazine, and Mongabay. She was the 2018–19 Science Communication Fellow for the Geological Society of America and attended Congressional Climate Science Days. Beyond writing, Sarah was an acting associate editor for EARTH Magazine. She also worked behind the scenes as an assistant producer on Big Picture Science radio show, broadcast on more than 140 public radio stations. You can find more of her work at www.sarahderouin.com or connect with her on Twitter @Sarah_Derouin.
When It’s Too Hot for Fans
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Mapping Beaver Dams with Machine Learning
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Fine-Tuning Air Pollution Models
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Scientists Just Measured a Debris Flow in Unprecedented Detail
This research team used a laser sensor originally designed for autonomous vehicles to track debris flow surges.
Lagos longevos cuentan una historia sobre el agua en Marte
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