i watched this recently but it could be from any time in the last ten or so years?

it was colour, in English, and mostly likely a SyFy movie (it had that Canadian look to it that most SyFy movies have)

the things I remember are…

an asteroid heading for earth

a space weapon, may or may not have been some sort of space station on a rock?

a wife or ex-wife on either the space weapon station, or a shuttle of some kind?

she is trying to radio back to earth but ends up contacting some teenagers instead?

the husband/ex-husband on earth who is the creator of the space weapon (I think???)

If anyone could help me track this movie down, I would love to see it again 👍