Ad Sonum, more like. Ad Astra is a visually impressive but dramatically implausible space-set drama with Brad Pitt as an astronaut out to find his father, who disappeared years earlier but whose space vessel has been detected in Neptune's orbit.
Tommy Lee Jones plays Brad's dad, and he may be threatening the whole planet by letting off an anti-matter thingy, or something.
The first 40 minutes or so are reasonably engaging; but after we have encountered space pirates on the moon, a baboon attack on a stranded ship, Brad having to manfully land a rocket in which he is just a passenger, discovering he's been set up (in a minimal way), stowing away on a vessel sent to find his father, and accidentally killing all the crew in the process, and then at the end finding his father is Colonel Kurtz (steal from the best, eh, guys) I found myself not caring a hoot about what was going on.
The story, as a whole, is silly. The science is humerous (Brad can steer himself in space without anything to get friction off), and the supporting actors get about 10 minutes of screen time each (Donald Sutherland, Ruth Negga, and Tommy Lee Jones) so as not to distract from the A List star the producers paid a lot of money for. Smacks of ego, to be honest.
The second half bored me to tears. The film then, is visually stunning, but surely that's the least we expect these days. So, when you get to the 894th close-up of Brad in his space suit, you just might drop off.