The Skeptics Guide #821 - Apr 3 2021

What's the Word: Phenotype; News Items: Satellites and Light Pollution, Heart Size and Space Travel, Self-Replicating Synthetic Cells, Why No Lyme Vaccine, Origins of SARS-CoV-2; Quickie with Evan: New Atomic Clocks; Who's That Noisy; Your Questions and E-mails: Avi Loeb; Science or Fiction