Quote from Mal on 08/20/08 at 23:26:19:...don't ask why
Why?
Yes, you can do this.
menu > Autopilot
Choose "Continuous Orientation" and select "towards" and choose your object in the left dropdown list, and choose the Sun in the right dropdown list. Click the "Current Time" button. Then press "Add"
This adds an autopilot command that tells it to always aim the asteroid towards the Sun beginning now.
While still in Autopilot
Choose "Thrust", select your asteroid, place 9.8 in the "meters/second/second" box, and make sure that "initiate" is choosen. Press the "After Last" button. Press "Add".
This adds an autopilot command that tells it to begin thrusting at 9.8 m/s/s in 1 second from now.
If you want it to thrust indefinately, then you're finished. Simply press "OK". If you want it to thrust for a specified amount of time, then enter the time and date you want the thrust to terminate. Then choose "Thrust" from the dropdown list. Select the asteroid, and choose "Cut off". Press "Add". Then close the Autopilot by pressing "OK".
I just tried it. This is a pretty cool simulation.