In Newton's gravity law, when two planets pull themselves TOWARD each other, it causes a SIDE motion in a ellipse orbit.
(two planets; pull; themselves; TOWARD) (it; causes; a SIDE motion in a ellipse orbit; L:In Newton's gravity law; T:when two planets pull themselves TOWARD each other)
two planets it
pull causes
themselves TOWARD
a SIDE motion in a ellipse orbit L:In Newton's gravity law T:when two planets pull themselves TOWARD each other