Our concentration now is on the cybernetics, the control system, for organized, collaborative networks - "swarm" in the old lingo - of what are essentially UAV and AUV type robots, only in terms of space operations, they are in free-space, zero-G or low-G, at least for anything separate from planetary terraforming. Yes, we concentrate on manipultion of target-object trajectories, such as asteroids that could cause significant damage and harm to Earth and its inhabitants.

(Please note carefully that any references to examples such as 99942 Apophis may be outdated now. Some years ago, it did appear that the risk of a natural orbital adjustment during the upcoming 2029 pass-by could cause this asteroid to have a high risk of collision with Earth in 2036 or even 2068. The evidence thus far (through early 2022 at least) is fairly strong that such a risk does Not exist, at least looking at future orbital approaches of this particular asteroid through the rest of the current 21st century. However... There can be others. And we must plan ahead...)