WHAT IF THE EARTH HAD TWO MOONS? by Neil F. Comins
SMART BUT NEVER HIGHFALUTIN book presents ten thought experiments in astrophysics. A must for SF writers! B PLUS
WHAT IF THE EARTH HAD TWO MOONS?: AND NINE OTHER THOUGHT-PROVOKING SPECULATIONS ON THE SOLAR SYSTEM
St. Martin’s Press
2010
Grade: B PLUS