Bennu, Earth and asteroid

The Earth could be sent into an "impact winter" if it is hit by the 500 metre wide Bennu asteroid where dust would be kicked ...
An asteroid strike could cool the planet's climate, harm crops, and disrupt food supply, but it may also increase plankton ...
Early analysis of asteroid samples from NASA’s OSIRIS-REx mission show the residue of an icy brine, and a soup of amino acids ...
The building blocks for organic matter have been discovered on the asteroid Bennu, as deatiled in a new study in the journal ...