RT @NASAhistory: #OTD in 1990, “Pale Blue Dot” image taken by @NASAVoyager I from 4 billion miles away. @COSMOSonTV https://t.co/YWQpYbu8QP
RT @NASAhistory: #OTD in 1990, “Pale Blue Dot” image taken by @NASAVoyager I from 4 billion miles away. @COSMOSonTV https://t.co/YWQpYbu8QP