A big asteroid will fly by Earth on Monday, but NASA says don't worry -- we'll be safe.
원문출처 : http://edition.cnn.com/2015/01/22/us/asteroid-fly-by/index.html?eref=edition
원문출처 : http://edition.cnn.com/2015/01/22/us/asteroid-fly-by/index.html?eref=edition