MAVEN reveals Martian atmospheric time capsule on Phobos as Mars fleet prepares for arrival Source: NASA Spaceflight Date Published: 02/08/2021 Data from NASA’s Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft has revealed the unsurprising — yet previously not searched for — presence of Martian atmospheric ions preserved in the top layer of regolith on the planet’s innermost moon, Phobos. Continue Reading >