NASA is hailing its world-first mission to move an asteroid as a roaring success.
Scientists have been evaluating whether a spacecraft which collided with an asteroid late last month successfully changed it's path.
The space agency's administrator Bill Nelson delivered the announcement just a short time ago, calling it a "watershed moment" for planetary defence.
The discovery is obviously too late for the dinosaurs, but it could help to remove the risk of earth being struck again by an asteroid.
Michele Bannister is part of the University of Canterbury research team which has been working on the project, and she joins us now.
