Pluto and Lowell Observatory: A History of Discovery at Flagstaff Kevin Schindler, Will Grundy
Percival Lowell
- Lowell Observatory Kevin Schindler
- The Sirens of Mars: Searching for Life on Another World Sarah Stewart Johnson
- The Tiny Bee That Hovers at the Center of the World David Searcy
- Mensen op Mars: relaas van een manmoedige poging Joris van Casteren
- La otra Tierra: Marte como utopía Daniele Porretta
- Summary of Valerie Trouet's Tree Story IRB Media
- Houston, abbiamo un problema Lorenzo Colombo, Matteo Miluzio, Filippo Bonaventura
- Is Mars Habitable? Alfred Russel Wallace
- Is Mars Habitable? Alfred Russel Wallace
