Deceleration burn?
[0] https://en.wikipedia.org/wiki/C/2023_A3_(Tsuchinshan–ATLAS)
But that film is relevant to this comet in another way -- several missions that made it into space before the administration's war on the scientific enlightenment may be able to image the comet when we can't see it (perihelion) or when they're much closer to it than we'll ever be.
Astronomers discover 3I/ATLAS – Third interstellar object to visit Solar System (308 points, 26 days ago, 171 comments) https://news.ycombinator.com/item?id=44451329
Vera C. Rubin Observatory Observations of Interstellar Comet 3I/Atlas (3 points, 7 days ago) https://news.ycombinator.com/item?id=44638392
Feasibility of a Spacecraft Flyby with the Third Interstellar Object 3I/Atlas (3 points, 6 days ago) https://news.ycombinator.com/item?id=44649150
First Hubble telescope images of interstellar comet 3I/ATLAS (109 points, 6 days ago, 29 comments) https://news.ycombinator.com/item?id=44649653
Probably not ground-based eyes, but possibly Hubble.
i.e. "the inhabitants are scanning us"
We have all kinds of space radars though that are active.
i mean aren't we talking like km/s of speed difference? idk of any kind of material even 50km long that could absorb that kind of stretch/sheering like that...
The whole thing would be like something like shooting a bullet at a moving target, but it's an idea.
That hypothetical probe will not look anything like any other space probe before it, but more like an artillery shell. (They can survive pretty damning Gs and still run that little embedded computer, so it's not a completely insane idea, I guess.)
We would also have to detect the interstaller object plenty in advance, so the probe can be launched "comfortably" in a trajectory which will intercept at exactly where the "object" is going to be.
Of course the G-load would lessen based on how much you sped up to match its speed beforehand, but still, I think you'd need to be pretty much sped up to near the same speed as it before you could remotely possibly survive the impact.
That leads to another idea - if something more substantial was placed in its path - the resulting debris and gas cloud from the impact could reveal something about the contents of the object.
Or, if it's an alien probe, it would force their hand. :-D We could see some exotic manuevering.
NitpickLawyer•6h ago
This is so cool! Vera Rubin is designed to detect lots and lots of similar things, and having a test case where they can go back and "track" 3I through data is probably a great thing for tuning their models. Can't wait to see what Rubin finds over the years.
Also, it's so cool that they found 3I pretty early, we'll now have lots and lots of data from multiple powerful observatories and probably from some remote ones as well. It's nuts that we'll probably get some images/data from probes out in the solar system (mars orbiters, maybe JUICE).