Letters to the Editor

Planetary Science

Readers were curious about rogue planets, exomoons and more

Readers had questions about rogue planets, human arrival in Australia, and exomoons.

Astronomy

Inquiries about the moon’s twilight zone, and more reader feedback

Readers had questions about the moon's tidal locking, quantum communication, microneedles and more.

Animals

Readers fascinated by critters’ strange biology

Readers responded to fish lips, monkey brains, sunless tanner and more.

Anthropology

Readers question hominid family tree

Readers sent feedback on hominid origins, fast cameras, slimy sea creatures and more.

Planetary Science

Readers intrigued by Mars’ far-out birth

Readers sent feedback on the Red Planet's formation, jumping genes and more

Climate

Readers question climate’s freshwater effects

Warming lakes, windmills for the Arctic, mosquito control and more in reader feedback.

Particle Physics

Readers puzzled by proton’s properties

Readers sent feedback on under-ice greenhouses in the Arctic, the Martian atmosphere and more.

Health & Medicine

Readers ponder the randomness of DNA errors

Readers sent feedback on cellular slip-ups, moon mayhem and more.

Health & Medicine

Readers concerned about cancer’s sugary disguise

Tricky cancer cells, brain-shaping smartphones, a cow-burying badger and more in reader feedback.

Animals

Readers bugged by wine-spoiling stinkbugs

Stinkbug hazards, Great Lakes invaders and more reader feedback.

Health & Medicine

Readers question mental health research

Maintaining mental health, protecting ocean critters and more in reader feedback.

Particle Physics

Readers question supernova physics

Star-destroying neutrinos, heart-hugging robots and more in reader feedback.