por Fressin, François [editor] | Rees, Martin [prologuista] | Baskill, Darren | Berta, Zachory K. (Zachory Kaczmarczyk) | Crawford, Carolin | Fabian, Andy | Murdin, Paul | Otero Piñeiro, Dulcinea [traductor].
por Rees, Martin J, 1942- [autor] | Hawking, Stephen, 1942-2018 [prologuista] | Herran, Nestor [traductor].
por Webb, Stephen, 1963- [autor] | Webb, Stephen. If the universe is teeming with aliens... where is everybody? | Rees, Martin J, 1942- [prologuista] | Otero Piñeiro, Dulcinea [traductor].