The James Webb Space Telescope has spotted galaxies further away in the universe than any other instrument before. How can we be sure these early galaxies aren’t closer and more recent?
A poem for Europa Clipper: US Poet Laureate Ada Limón reveals ode to fly on NASA Jupiter moon mission
“It is not darkness that unites us, not the cold distance of space, but the offering of water…” Those words, by U.S. Poet Laureate Ada