March 1, 2021 updates Posted on March 1, 2021 by Doug Loss Space Development Futures: Spacefaring Infrastructures of Indifferently Spacefaring Civilizations https://www.centauri-dreams.org/2021/02/26/space-development-futures-spacefaring-infrastructures-of-indifferently-spacefaring-civilizations/ Hyperspeed penetrator to deliver research equipment to interstellar wanderers https://aip.scitation.org/doi/abs/10.1063/5.0038658 Diurnal Variability and Detectability of Vegetation Red Edge of Earth-like Exoplanets https://iopscience.iop.org/article/10.3847/1538-4357/abd6ff Finding Signs of Life in Transits: High-resolution Transmission Spectra of Earth-line Planets around FGKM Host Stars https://iopscience.iop.org/article/10.3847/2041-8213/abe634 Concepts for future missions to search for technosignatures https://www.sciencedirect.com/science/article/abs/pii/S009457652100103X TechnoClimes https://technoclimes.org/ Characteristics of aquatic biospheres on temperate planets around Sun-like stars and M-dwarfs https://arxiv.org/abs/2005.14387