Защо Земята е подходяща за живот?
00:13 - 00:18 Linda A. Amaral-Zettler, CC BY-SA 3.0 https://creativecommons.org/licenses/..., via Wikimedia Commons
00:18 - 00:25 Nancy Merino, Heidi S. Aronson, Diana P. Bojanova, Jayme Feyhl-Buska, Michael L. Wong, Shu Zhang and Donato Giovannelli, CC BY-SA 4.0 https://creativecommons.org/licenses/..., via Wikimedia Commons
01:05 - 01:21 J. Gale, 2015
02:27 - 02:36 ESO, CC BY 4.0 https://creativecommons.org/licenses/..., via Wikimedia Commons
02:40 - 02:53 Andrew Z. Colvin, CC BY-SA 4.0 https://creativecommons.org/licenses/..., via Wikimedia Commons
03:17 - 03:20 Image Editor, CC BY 2.0 https://creativecommons.org/licenses/..., via Wikimedia Commons
03:30 - 03:49 JSquish, CC BY-SA 3.0 https://creativecommons.org/licenses/..., via Wikimedia Commons