- What If We Caught an Interstellar Visitor?
- What If We Killed All Spiders?
- What If Seeds Could Grow in Your Stomach?
- What If Your Dreams Could Be Hacked?
- What If a White Hole and Black Hole Collided?
- What If You Jumped Into Lake Natron?
- What If Everyone Froze for 1,000 Years?
- What If We Built an O'Neill Cylinder?
- Discussed: What If We Lived in Space? - With Dr. Ronke Olabisi
- What If You Caught the Swine Flu?
- What If a Massive Locust Swarm Attacked Your City?