COVID Update: Delta Variant; News Items: Detecting Life, Update on Space Launch System, Brain Implant for Pain, Pupil Size and Intelligence; Who's That Noisy; Your Questions and E-mails: Food from Air; Science or Fiction

News Items: Bad Science Reporting, Protecting Climate and Species, COVID Pseudoscience in Brazil, Night Vision Glasses, Homeopathic Overdose; Who's That Noisy; Name That Logical Fallacy

What's The Word: Operculum; News Items: Regeneration, Social Media and Memories, 3D Printing Reusable Rockets, Mental Illness and Mass Shootings, Magnetized by Vaccine; Who's That Noisy; Your Questions and E-mails: Wow Signal; Science or Fiction

Lab Leak Theory Revisited; News Items: Minimize Left Turns, Replacing Enamel, Graphene Aluminum Ion Batteries, Bee Venom Therapy Pseudoscience; Who's That Noisy; Your Questions and E-mails: Left Brain - Right Brain; Science or Fiction

Interview with Mick West; News Items: Non-Replicated Studies Cited More, Maximum Human Lifespan, Graphene Concrete, Atomic Level Microscope, Brain Game Pseudoscience; Who's That Noisy; Science or Fiction

COVID Update; News Items: Butt Breathing, Bullshit and Intelligence, Brightest Cosmic Light, UFOs Again; Who's That Noisy; Your Questions and E-mails: Excited Delirium; Who's That Noisy; Science or Fiction

Interview with Julia Galef; News Items: Brain Implant Interprets Writing, SARS-CoV-2 May Enter Genome, Hypersonic Jets, Sequestering Carbon; Who's That Noisy; Your Questions and E-mails: Energy Density; Science or Fiction

Interview with Andy Weir; SGU 16 years; News Items: Electric Planes, Website Diversity, Evolution of Multicellularity, NASA Solar Probe, Chinese Space Program; Who's That Noisy; Science or Fiction

Correcting Lord Kelvin; News Items: Miracle Bleach Peddler Indicted, Michael Collins, Life on Mars, Political Polarization, Brood X; Who's That Noisy, Your Questions and E-mails: Non-Human Intelligence; Science or Fiction

COVID Update; News Items: Lunar Lander Chosen, Nuclear Fallout, Viral Vector Gene Therapy, Predicting the next Pandemic, FRBs and the Expansion of the Universe; Your Questions and E-mails: Why is North Up?; Dumbest Thing of the Week; Who's That Noisy; Science or Fiction