The Five Great Human Challenges to Make Space and Interstellar Travels
https://blogdefalcoforado.wordpress.com/2021/09/24/the-five-great-human-challenges-to-make-space-and-interstellar-travels/
Our Place in the Universe – II
https://link.springer.com/book/10.1007/978-3-030-80260-8
Directed Energy Accelerated Lightsails
https://www.researchsquare.com/article/rs-943018/v1
A radio technosignature search towards Proxima Centauri resulting in a signal of interest
https://www.nature.com/articles/s41550-021-01479-w
Analysis of the Breakthrough Listen signal of interest blc1 with a technosignature verification framework
https://www.nature.com/articles/s41550-021-01508-8
Ion-driven organic chemistry for Titan-like atmospheres: Implications for N-dominated super-Earth exoplanets
https://www.aanda.org/articles/aa/full_html/2021/10/aa41328-21/aa41328-21.html
Comparison of the mass distributions of short-period exoplanets detected by transit and RV methods
https://academic.oup.com/mnrasl/advance-article-abstract/doi/10.1093/mnrasl/slab115/6409826
ExoFrontiers – Big questions in exoplanetary science
https://iopscience.iop.org/book/978-0-7503-1472-5
TESS-Keck Survey. V. Twin Sub-Neptunes Transiting the Nearby G Star HD 63935
https://iopscience.iop.org/article/10.3847/1538-3881/ac18cb
The First Interstellar Astronauts Will Not Be Human
https://arxiv.org/abs/2110.13080
The Search for Deliberate Interstellar SETI Signals May Be Futile
https://arxiv.org/abs/2110.11502
A model Earth-sized planet in the habitable zone of α Centauri A/B
https://arxiv.org/abs/2110.12565
The LHS 1678 System: Two Earth-Sized Transiting Planets and an Astrometric Companion Orbiting an M Dwarf Near the Convective Boundary at 20 pc
https://arxiv.org/abs/2110.12079
Dynamical tidal Love numbers of rapidly rotating planets and stars
https://arxiv.org/abs/2110.12129