ESOWhat is asteroid 1999 KW4? It’s a “double asteroid” about 1.3 km wide, and does not pose any risk to Earth. Dauvergne & G. Hüdepohl (atacamaphoto.com)/ESOHow did astronomers photograph asteroid 1999 KW4? The VLT is one of the very few telescopes able to distinguish between the two parts of a double asteroid at that distance. NASAIt’s a great example of intergovernmental cooperation at the highest level, and it’s set to continue for planetary defense in general.

Source: Forbes June 03, 2019 13:52 UTC