Source: wikibot/the-biggest-ideas-in-the-universe-space-time-and-motion
= The Biggest Ideas in the Universe: Space, Time, and Motion
{wiki=The_Biggest_Ideas_in_the_Universe:_Space,_Time,_and_Motion}
= The Biggest Ideas in the Universe: Space, Time, and Motion
{wiki=The_Biggest_Ideas_in_the_Universe:_Space,_Time,_and_Motion}