They could only assume that Aldebaran's gravity had attracted the eggs when the star was bright and adolescent, and that its expansion had hatched them.

Any matter would be pulled along, even though ordinary gravity can only attract matter, not push it sideways.

It is interesting to note that gravity has only one charge and always attracts, electricity has two charges (+ and -) and so can repel or attract.

A satellite's gravity could attract one of the primary's spiral arms.

Achievement of Einstein's Gravitational-Electromagnetic Equivalence means gravity could, on quantum levels, also attract and repel itself.

This is why gravity always attracts bodies toward each other.

She hadn't understood most of it, but had focused on the fact that while gravity only attracted, electricity could attract or repel.

Their stroll hadn't been planned, but when they'd left the place, their common gravity attracted; held them together.

The gravity of the density wrinkles could have attracted more and more matter, in what was generally assumed to be the bottom-up fashion.

But if negative matter or negative mass exists, them you would know that gravity can attract and repel just like the electromagnetic force.