If you'd like to install Messenger now, it’s available on iOS, Android, Windows Phone and some feature phones. To get the app, go to fb.me/msgr or visit the app store on your phone or tablet. After more than 10 years in operation, the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft impacted the surface of Mercury on April 30, 2015, at a speed of more than 3.91 kilometers per second (8,750 miles per hour), marking the end of operations for the hugely successful Mercury orbiter. At the MESSENGER Nears End of Operationsmedia and public event, scientists and engineers discussed the mission’s accomplishments, providing the top 10 scientific discoveries, as well as the technological innovations that grew out of the mission.
