Most Extreme Things in Science

What's the fastest, the smallest, the slowest, the largest, the thinnest, the rarest? Let's see if you know.

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Last updated: June 1, 2022

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First submitted	June 1, 2022
Times taken	37
Average score	16.7%
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Keep scrolling down for answers and more stats ...

-st thing	Answer
Fastest	Light
Slowest	Hawking Radiation
Smallest	Planck Length
Largest	Hercules-Corona Borealis Great Wall
Element with the longest half-life	Xenon-124
Smallest Wavelength	Gamma
Longest Wavelength	Microwave
Brightest	Quasar
Coldest (liquid) (from earth)	Liquid Nitrogen
Hottest (natural)	Supernovae
Hottest (artificial)	LHC
Rarest (element)	Astatine
Coldest (not liquid) (not from Earth)	The Boomerang Nebula
Densest	Neutron Star
Thinnest	Graphene
Strongest Material	Graphene
Least dense (material)	Aerogel
Least dense (element)	Hydrogen

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