What is a reliable way to check a surprising claim?
AnswerCompare several reputable sources
Agreement among independent, reputable sources is strong evidence.
Challenge · Facts & stats
Fact facts & stats
7 fact-checked facts about facts, fact-checking and common myths, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
About how long does Earth take to orbit the Sun?
AnswerAbout 365 days
One orbit takes roughly 365.25 days, which is why we have leap years.
Going deeper
What is confirmation bias?
AnswerFavoring information that supports what you already believe
It leads people to overlook evidence against their views.
What does a reverse image search help you do?
AnswerFind where an image has appeared online
It can reveal an image's original source and context.
Is it true that goldfish have only a three-second memory?
AnswerNo, they can remember things for months
Studies show goldfish can learn and remember for months.
Expert level
The word 'fact' comes from the Latin 'factum', meaning what?
AnswerA thing done
Factum originally meant a deed or something done.
Is there evidence that Viking warriors wore horned helmets in battle?
AnswerNo
The horned image comes largely from 19th-century art and opera costumes.
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