Asteroid 2016 RB1 grazed Earth on 7 September. About the size of a cottage, the asteroid flew past our planet at an altitude of 34 000 km,
roughly the same as the altitude of geostationary satellites. Yet it posed no hazard neither to our planet nor to spacecraft. It was
discovered only 24 hours before closest approach, highlighting the need for us humans to keep an eye on our Solar System!
ESA - European Space Agency
http://neo.ssa.esa.int/
