October 12, 2018 updates Posted on October 12, 2018June 28, 2020 by Doug Loss A New Planet in the Kepler-159 System From Transit Timing Variations https://academic.oup.com/mnras/advance-article-abstract/doi/10.1093/mnras/sty2738/5124396 A Framework for Planet Detection with Faint Light-curve Echoes http://iopscience.iop.org/article/10.3847/1538-3881/aadc5e Methane in Analogs of Young Directly Imaged Exoplanets https://arxiv.org/abs/1810.04684 Confirmation of the radial velocity super-Earth K2-18c with HARPS and CARMENES https://arxiv.org/abs/1810.04731 From rock to life. A mass balance analysis of oxidative biological weathering and biosignatures formation https://arxiv.org/abs/1810.05128 Climates of Warm Earth-like Planets II: Rotational ‘Goldilocks’ Zones for Fractional Habitability and Silicate Weathering https://arxiv.org/abs/1810.05139 Early evolution of purple retinal pigments on Earth and implications for exoplanet biosignatures https://arxiv.org/abs/1810.05150