Bennu, asteroid and Earth

What would happen if a 500-meter asteroid hit Earth? Scientists at the IBS Center for Climate Physics modeled the aftermath, ...
An asteroid strike could cool the planet's climate, harm crops, and disrupt food supply, but it may also increase plankton ...
The Bennu samples contain 14 of the 20 amino acids that are essential for life on Earth to build proteins. Also found were ...
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 ...