Swiss engineer George de Mestral, who got the idea after noticing burrs were sticking to his pants after his regular walks through the woods, invented Velcro.

Utopia ia a large, smooth lying area of Mars.

Around three quarters of the increase in CO2 levels from human activity over the last 20 years is from the burning of fossil fuels. The rest is made up largely of land use changes such as deforestation.

AMAZING FACTS