6 • First Word (Omni, Winter 2017) • essay by Pamela Weintraub 10 • Continuum (Omni, Winter 2017) • essay by various 16 • Bios: Ghosts of History • essay by Pamela Weintraub 18 • Matter: Crystals of Eternity • essay by Shannon Palus 26 • Taking Agency • interview of William Gibson • interview by Elizabeth Hand 30 • The Golden Age of Time Travel TV • essay by Paul Levinson 34 • Doing Time on a Generation Starship • essay by Sherry Baker 46 • Every Hour of Light and Dark • short story by Nancy Kress 60 • Building Doctor Who's Time Machine • essay by Robert Lanza 79 • Interview: The Future of Longevity • essay by Linda Marsa 84 • Sidewalks • short story by Maureen F. McHugh [as by Maureen McHugh] 92 • Travels on Time's Arrow • essay by Michael Shermer 104 • Verweile Doch (But Linger) • short story by Rich Larson 120 • Last Word (Omni, Winter 2017) • essay by Mike Edison