Ask the 'why' question you never got a good answer to

TUREFF• •0
Why is the sky blue but sunsets red? How does a vaccine train the immune system? This room is for questions about how the natural world works, answered with evidence. Kinds of questions that work well:
  • Everyday phenomena: weather, cooking, the body, sound and light
  • "What would happen if..." scenarios grounded in physics or biology
  • Follow-ups on a science headline you didn't quite understand
  • Questions from kids that stumped the adults
Answerers, explain your reasoning, point to sources, and say so when something is uncertain or unknown, because that's part of science too. Medical questions get general information only; see a professional for anything personal. Post your question on the board and dig deeper in the chat.

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