You need like an 83% high school average to get into an aerospace engineering programs in Canada. It's amusing that you're making a subsequent qualifier with " or NASA engineer". I mean that's the equivalent of saying anyone can get into law school, but not everyone can work for Morgans. Which is absolutely true, and the sentiment applies to basically every job.
Thankfully I did get in!
I actually did start one for this year. However, it is admittedly a mess as I lost interest after realizing they were clearly deviating from the suspected index formula. I now do not have the time to fix/continue with it. Hopefully someone will do it for next year's applicants.