Another question remains: what prevents the planet from continuing its spiral until it collides with the star?

还有一个问题：在与恒星相撞之前，是什么阻止了这颗行星继续螺旋运动？

youdao

Beautiful theory collides with smashing particle data.

理论很美妙，粒子数据却不给力。

youdao

Unfortunately this collides with the RUP Elaboration phase.

不幸的是这与 RUP 的精化阶段冲突。

youdao

"Gives a rebel yell and hoot when he does manage to stand up for a split second,drops in on people, collides with people."

VOA: standard.2010.08.04

It collides with truck B of mass 1 tonne, which is moving on the same rails.

BBC: Colleges despair at exam board 'error'

And what does he have to say when market competition collides with social solidarity?

ECONOMIST: Capitalism's success

Others are created by electron scattering, when a neutrino of any flavour collides with an electron.

ECONOMIST: The news that neutrinos have mass is both good and bad