How Flat Can a Planetary System Get? I. The Case of TRAPPIST-1
https://iopscience.iop.org/article/10.3847/1538-4357/abf8a8
The HARPS search for southern extra-solar planets – XLVI. 12 super-Earths around the solar type stars HD 39194, HD 93385, HD 96700, HD 154088, and HD 189567
https://www.aanda.org/articles/aa/abs/2021/10/aa41351-21/aa41351-21.html
Interstellar space biology via Project Starlight
https://www.sciencedirect.com/science/article/abs/pii/S0094576521005518
The impact of photospheric brightness field on exoplanetary transit timings and the TTV excess of HD 189733 b
https://arxiv.org/abs/2110.07901
Retention of water in terrestrial magma oceans and carbon-rich early atmospheres
https://arxiv.org/abs/2110.08029
Characterizing the Galactic and Extragalactic Background Near Exoplanet Direct Imaging Targets
https://arxiv.org/abs/2110.08097
The Fine-Tuning of the Universe for Life
https://arxiv.org/abs/2110.07783