The whole shipload of them is heading on collision course for the sun.
If angle of closure remains constant, you're on collision course.
Shes bound on collision course for Sol, only twenty million miles out now.
Instantly, the searchers moved to close in the arc and meet him on a collision course.
That plane steadied on a collision course and let go its wing load of rockets.
During the sequence of the collision course, I was trying in my mind to figure out just how far off Willy's asteroid would be.
Democratic ideals and the upward distribution of wealth are on a collision course.
It was clearly another submarine, closing in on a collision course.