@article{pessoa filho_2021,  title={Space Age: Past, Present and Possible Futures},  volume={13},  ISSN={2175-9146},  url={https://doi.org/10.1590/jatm.v13.1226},  DOI={10.1590/jatm.v13.1226},  journal={Journal of Aerospace Technology and Management},  publisher={Departamento de Ciência e Tecnologia Aeroespacial},  author={Pessoa Filho, José Bezerra},  year={2021},  pages={e3421} }