While people were only dreaming of flights to the stars, Russian science-fiction writers were already sending their heroes on cosmic journeys through the pages of their works. Flight to the Moon, encounters with Martians, collisions with comets, the creation of a “liquid sun,” and curing diseases—these daring ideas often got ahead of their time and even anticipated discoveries to come. The collection includes stories by V. Odoevsky, K. Tsiolkovsky, P. Infantyev, L. Afanasyev, A. Kuprin, A. Belyaev, and S. Belsky.