
NASA @NASA
@NASA Q: #CountdownToMars IS There water (sea or rivers) on Mars ? - @YawokoumaA A: Scientists see evidence that there were, billions of years ago. Our @NASAPersevere rover’s landing site is an ancient river delta. 🎙 @Zenanaut explains: https://t.co/jLKDAYsx9u — PolitiTweet.org