Movies too often use outer space as nothing more than a convenient setting for battles, explosions, and laser fights. The fabulously entertaining science-fiction movie Project Hail Mary offers something wholly different. It imagines space as a luminous yet mysterious backdrop for friendship, spiritual growth, and expressions of intergalactic empathy. Although, owing to its setting, the movie is jam-packed with the sort of sterile hardware associated with space travel — steel and screens and ladders and pods — watching it is akin to sinking into a big cozy sofa, one with all sorts of pockets and niches in which to lose popcorn and Junior Mints. It’s the most companionable space adventure movie ever made.