Quirks & Quarks has been taking your burning science questions for half a century. And while we thought we might have answered every question there is to answer over the years, our listeners proved there are always more fascinating head-scratchers for us to tackle.

Like:

• Are comets eternal?
• In a sauna, what am I sweating out?
• Did dinosaurs produce milk?
• If heat rises, why is there snow on the top of mountains?
• What does a black hole orbit?
• What if we had no moon?
• Why are cat and dog tongues so different?
• Why are robin eggs so blue?
• Why do some animals become mega sized?
• How do animals deal with strong bright UV light?