- Back to Earth
- Background Particle Theory
- Basics of Communication & Astronomy
- Batalhas espaciais : um manual para a imaginação das guerras estelares
- BBC: The Story of the Solar System
- Before the Big Bang
- Before This Decade Is Out
- Beginner’s Guide to Astronomy: Easy guide to stargazing, the latest discoveries, resources for begin...
- Behind The Clouds
- Bewegte Zeiten
- Beyond Area 51
- Beyond Contact
- Beyond Earth
- Beyond the Atmosphere
- Beyond the Stars
- Bible Code Statistics: The Christmas Star, The Bethlehem Star, and More!
- Big and Bright
- Big Ban Theory: Elementary Essence Applied to Arsenic, Eternal Sunshine of the Spotless Mind, Earth ...
- Big Ban Theory: Elementary Essence Applied to Gallium, Sun’s Heartbeat, Missing Sunspots, and Sunflo...
- Big Bang
- Big Bang: A Ladybird Expert Book
- Big Shiny Moon! What's in a Spaceship - Space for Kids - Children's Aeronautics & Astronautics Books
- Billions & Billions
- Biocentrismo
- Birth, Evolution and Death of Stars
- Black Hole Survival Guide
- Black Holes
- Black Holes and Baby Universes
- Black Holes Are Souls
- Black Holes, Supernovae, & More
- Blinking Universe: 30 Technical Papers on Theory & Applications
- Blue Darker Than Black
- Blue Gemini
- Bolon Tiku
- Book On Space: Asteroids and Meteors
- Book Review: A Brief History of Time by Stephen Hawking
- Boom!
- Breve storia delle catastrofi planetarie
- Bridging the Gap
- Brief Answers to the Big Questions
- Brief History of Timekeeping
- Bright Galaxies, Dark Matter, and Beyond
- Bright Star, Night Star
- Bright Star, Night Star: An Astronomy Story
- Bringing Columbia Home
- Broca's Brain
- Broken Fan Summer Daze
- Brown Dwarf Companions to Young Solar Analogs
- Building and Sending Interstellar Probes
- Burnham's Celestial Handbook, Volume One
- Burnham's Celestial Handbook, Volume Three
- Burnham's Celestial Handbook, Volume Two
- Burçlarla İlgili Her Şey
- Błękitna kropka