A BETTER WORLD, BY JOVE!

They shut off winter soon after that. The heat trap was turned on full force; the skies cleared and it was lovely.

The first view I got of the Ganymede sky was a little after dawn next Sun phase. The heat trap made the sky a pale green—but Jupiter shone right through it, ruddy, orange, and big. Big and beautiful—I've never gotten tired of looking at Jupiter.

It hangs there in the sky, never rising, never setting . . . and you wonder what holds it up!

“Heinlein is more responsible for the development of modern science fiction than any other man!”

—The New Yorker