But I'll disagree on Gravity and Interstellar getting spaceflight right. Unless you are going for very basic.
But I'll disagree on Gravity and Interstellar getting spaceflight right. Unless you are going for very basic.
When it's only tangentially related, we're far more forgiving.
It can even get downright dangerous when policymakers start getting their ideas from them. For example, shows like "24" that have suspects giving up accurate and truthful information under torture, when any expert in the field of interrogation knows it doesn't work that way.
There's a more insidious explanation for this specific case: Viewers are being conditioned to accept torture as a legitimate interrogation technique, at the direction of $AGENCY.
Actually, that's when I feel compelled to give it a pass. We watch movies all the time that start on a ridiculous assertion. Allowing one major mistake I have to let go, but in the beginning and service of the plot as a whole is okay with me, as long as most of the rest is done well. Having something that just plain seems wrong but without any reason beyond laziness is what really gets me.
For example, without allowing for the core problems of orbital physics of the debris and the relative distance and speed if different space stations, there is no movie. I found the rest of the movie enjoyable enough that I allow for those mistakes in service of the whole (in a similar way that I allow for a lot more in a superhero movie).
Except at the times when a ship is disabled in an attack, and then changes course and "sink" into the nearby planet.
But yeah, I do agree. It's much easier to watch that kind of atrocity in a movie that makes no effort to look realistic than it is to watch something like gravity.
Once you have cheap, powerful thrusters like starwars/startrek has (thrusters that can hold the mass of the whole ship against gravity in any direction, independent of the main engine), it makes little sense to actually bother going into orbit, unless you actually want to turn the thrusters off.
Instead, just pick a point on the planet and hover over it. Or pick a circular orbit-like path around the planet for maximum coverage. Just pick whatever position or path through space makes the most strategic sense.
If you have a ship operating like this, and it loses power to it's thrusters... then of course it will 'sink' into the nearest planet as gravity suddenly becomes the primary force acting on the ship.
edit: I forgot that they had another ship waiting for them in LEO already, so maybe the fuel point doesn't apply. But, it's still plausible that the earth rocket had to carry a much larger payload than the lander had to carry.
Why everybody brings up this honestly stupidest ctiticism about the movie is beyond me. It's like you lack both imagination and understanding how space missions work.