A rendering of a lunar lander of the European Space Agency’s Argonaut program, which has its first mission to the moon scheduled for 2030. Methane released from spacecraft like these

Keith’s note: I got this update by text from Dale early this morning: Hi Keith, We arrived 6pm UTC Tuesday evening to a bright, sunny windless day with air temps

Comparison of the star properties of “K dwarfs” to Sun-like “G dwarfs” (third and fourth from left). Reproduced through CC-licensing from the work by J.-V. Harre and R. Heller (2021,

(A) Beta diversity of ISS surface microbiota using phylo-RPCA. Each point represents one sample, colored by module of origin. Distances between samples reflect microbial composition similarity, with vectors indicating features

Europa’s possible ocean composition — NASA The giant planet Jupiter has nearly 100 known moons, yet none have captured the interest and imagination of astronomers and space scientists quite like