Help make Alexa smarter on Alexa Answers. Sign in with Amazon

Science

Is the sun on fire?


No, the Sun isn't "made of fire". It's made mostly of hydrogen and helium. Its heat and light come from nuclear fusion, a very different process that doesn't require oxygen. Ordinary fire is a chemical reaction; fusion merges hydrogen nuclei into helium, and produces much more energy.

{{ relativeTimeResolver(1566513483015) }}

LIVE
Points points 346
Rating 3

Similar Questions
Sign in to view all similar questions

Join Alexa Answers

Help make Alexa smarter and share your knowledge with the world

LEARN MORE