宇宙!_[苍穹

宇宙!_[苍穹

2014美国英语已完结

  In ,`tryin(g? to comp;^@rehen`?d o,[=ur u(niverse, just$ how big-* is big? Ho=w!\ far is fa[r? This use#;rs guide to t_*he%+= cosmos w ]?ill bring the[ incomprehens/%i,*#ble down @to [a h uman scale% such as V enus me?lting`= a tank, the densit \y+ of a $@blac/;k hole co^mpare[d to 1000 cars in a Coke can$[, *a`:(]nd t:[he co met [*s in the Solar/:! Sy=st em equate`d to gra*ins of sugar weigh: ing + h;/alf a t on.

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