From "Rocket Summer" to "The Million-Year Picnic," Ray Bradbury's stories of the colonization of Mars form an eerie mesh of past and future. Written in the 1940s, the chronicles drip with nostalgic atmosphere--shady porches with tinkling pitchers of lemonade, grandfather clocks, chintz-covered sofas. But longing for this comfortable past proves dangerous in every way to Bradbury's characters--the golden-eyed Martians as well as the humans. Starting in the far-flung future of 1999, expedition after expedition leaves Earth to investigate Mars. The Martians guard their mysteries well, but they are decimated aby the diseases that arrive with the rockets. Colonists appear, most with ideas no more lofty than starting a hot-dog stand, and with no respect for the culture they've displaced.