An unabridged collection spotlighting the best hard science fiction stories and novellas published in 2021 by current and emerging masters of the genre, edited by Allan Kaster.- "Light Up the Clouds" by Greg Egan - Inhabitants in the floating forests of a gas giant that orbits a dwarf star launch a glider on an orbital trajectory to investigate unnatural asteroid-like objects that threaten their survival.- "Striding the Blast"...