Vesta's impact crater is so massive, the asteroid that hit it may have exposed the planetoid's mantle. @NASA_Dawn #NASATweetup
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Vesta's impact crater is so massive, the asteroid that hit it may have exposed the planetoid's mantle. @NASA_Dawn #NASATweetup