Why don't they fall straight to the ground like everything else?

There still was not room for his body to fall straight down.

A plane not moving through the air will fall straight down.

The doctor felt as though his stomach would fall straight through into the floor.

The ball just seems to fall straight down into his glove.

She fell straight down to the bottom of the stairs.

"If the rest of the building can't do it, everything begins to fall straight down," he said.

The rain fell straight down, pulled to earth by its own weight.

The sun fell straight upon one of the crimson eyes.

In other words we fell straight up for more than twenty thousand miles.