December 18, 2020 updates Posted on December 18, 2020 by Doug Loss Understanding the Impacts of Stellar Companions on Planet Formation and Evolution: A Survey of Stellar and Planetary Companions within 25 pc https://arxiv.org/abs/2012.09190 The Influence of Age on the Relative Frequency of Super-Earths and Sub-Neptunes https://arxiv.org/abs/2012.09239 On the Scaling and Spacing of Extra-Solar Multi-Planet Systems https://arxiv.org/abs/2012.09431 The Tierras Observatory: An ultra-precise photometer to characterize nearby terrestrial exoplanets https://arxiv.org/abs/2012.09744