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 👍