Can heimdall see Thanos?

Considering his powers, there might be something of a plot hole in Infinity War considering Heimdall doesn’t seem to see Thanos’ ship coming prior to its appearance at the end of Thor: Ragnarok. Although the Mad Titan is powerful, there’s no real indication that he might have found a way to overcome Heimdall’s powers.

How did Thanos get Uru?

Uru is a godly metal fairly well known in the universe. It is forged in the Nidavellir. In the comic books, it is described as a metal derived from the first moon in the existence of the universe. It possesses extreme strength and keeps enchantments in well, making it the perfect material for Thanos’s weapon.

Did Heimdall know that Thanos was coming?

Even if Heimdall saw Thanos coming, it’s not like they could have done much. Thanos coming was inevitable, so it wouldn’t really help. Thanos STILL would have come and killed the Asgardians, so the answer is that it doesn’t matter whether Heimdall saw Thanos coming at all. Plot armour lol.

Did Heimdall (Idris Elba) warn Odin about Thanos before Ragnarok?

But even without Odin’s faithful companions, the all-seeing Heimdall (Idris Elba) could have warned him about Thanos’s conspicuous movements at some point before Ragnarok arrived.

Could Thanos have escaped Odin’s surveillance?

Of course, none of these informants was infallible, as Thanos could have easily found a way to escape Odin’s surveillance like the Dark Elves did with their cloaking devices when they slipped under Heimdall’s radar and led a surprise attack on Asgard during Thor: The Dark World. Odin was a secretive king.

Can Heimdall see villains that director does not want him to?

Heimdall does not see the villains that director does not want him to. Btw even if heimdall could see n warn thor of thanos, there is no escaping thanos. If Dr. Strange could see the millions of outcomes using the Time Stone, shouldn’t Thanos technically be able to do the same thing or maybe avoid that one outcome where he fails?