Estamos sozinhos no Universo?

FONTES 



Microlensing Observations in Astrophysics (MOA) Collaboration, and Optical Gravitational Lensing Experiment (OGLE) Collaboration. "Unbound or distant planetary mass population detected by gravitational microlensing." Nature 473, no. 7347 (2011): 349-352. Petigura, Erik A., Andrew W. Howard, and Geoffrey W. Marcy. "Prevalence of Earth-size planets orbiting Sun-like stars." Proceedings of the National Academy of Sciences 110, no. 48 (2013): 19273-19278. Lineweaver, Charles H., Yeshe Fenner, and Brad K. Gibson. "The galactic habitable zone and the age distribution of complex life in the Milky Way." Science 303, no. 5654 (2004): 59-62. Behroozi, Peter, and Molly S. Peeples. "On the history and future of cosmic planet formation." Monthly Notices of the Royal Astronomical Society 454, no. 2 (2015): 1811-1817. Hart, Michael H. "Explanation for the absence of extraterrestrials on earth." Quarterly Journal of the Royal Astronomical Society 16 (1975): 128.

MATERIAL USADO 
aliens do passado: https://youtu.be/IGikG75OXvM 
universo capa: https://goo.gl/yrqYpy 
aliens capa: https://goo.gl/RyQhKs 
et poster: https://goo.gl/oPfAKR 
via lactea: https://goo.gl/KyvW0b 
universo visivel: https://goo.gl/N2kvl1 
ceu de sao paulo: https://goo.gl/Ebz5W5 
comunicador star trek: https://goo.gl/defFZH 
unobtanium: https://goo.gl/Eg12Yc 
star wars starkiller: https://youtu.be/WYtRuOz4Wvw 
o dia em que a terra parou: https://youtu.be/HQSGHbbDR_Q 
alien egg: https://goo.gl/mtQpE2 
galactus: https://goo.gl/ORnsQL 
jar jar binks: https://goo.gl/sxgxNC 
independance day: https://youtu.be/vjFG-4Ge668 
bomba atomica: https://goo.gl/N18O0w 
ewoks: https://youtu.be/3tUuZrvadMQ