Letters to the Editor

Readers weigh in on nuclear fusion, paths to the good life and more

Readers discuss Pluto’s planetary status, balding black holes and more

Readers discuss ‘uniquely human’ DNA and Mars’ volcanic activity

Readers discuss corn debris biofuel, the color of ancient Mars’ oceans and more

Readers weigh in on deer-vehicle collisions, mouse sperm in space and more

Readers discuss the 1921 Tulsa race massacre, zombie fires and more

Readers weigh in on the Brazil nut effect, clock entropy and more

Readers react to birds colliding with wind turbines, mysterious muons and more

Readers weigh in on the ‘USS Jellyfish,’ the new age of videocalling and more

Readers weigh in on microbes traveling by smoke, ‘Oumuamua and more

Readers ask about black hole collisions, catnip and more

Readers react to million-year-old mammoths, parasitic plants and more