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

Miscellaneous

What's the lightest thing in the world?


The lightest thing known is the neutrino, a sub-atomic particle with an assumed rest mass of about 1.25 times 10^-37 kilograms -- less than 0.00002% of the mass of an electron.

{{ relativeTimeResolver(1602802642568) }}

LIVE
Points points 882
Rating

Similar Questions
Sign in to view all similar questions
Miscellaneous 1 Answer

Join Alexa Answers

Help make Alexa smarter and share your knowledge with the world

LEARN MORE