NASA's targeted Asteroid Bennu for the sampling mission as it seems to have some different properties like one is faster spin of Bennu.This study will help scientist to understand the evolution of asteroids and the possible threat to earth. In the journal geophysical Research letters,the research of bennu has published showing that rotation is speeding up by one second per century.I know this speed doesn't seem like much ,but in long run it can transferred into dramatic changes . As on today ,it moves through space at about 101,00 km/h . Hence completing a full rotation every 4.3 hours. Bennu being located 110 million kilometers away from earth .So, it speeding over years might lead it lose its pieces or may blow itself apart. The original, spectral interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) spacecraft reached Bennu last year for the purpose of study and it will ...