Earth has been attacked by alien forces before in the Marvel Cinematic Universe, but nothing will compare to the invasion led by Thanos in Avengers: Infinity War. With The Black Order and his monstrous minions in tow, the Mad Titan will stop at nothing to obtain the Infinity Stones on Earth, and as with any extraterrestrial onslaught, he's bringing strange technology with him. For instance, in the Infinity War trailer, there's a shot of a giant ring hovering somewhere over New York City. It remains to be seen if this ring is a portal, energy weapon or something else entirely, but one Marvel fan has deduced that the ring is located above Greenwich Village.
Our main look at this alien ring in the Avengers: Infinity War trailer comes after Peter Parker's spider-sense is triggered while he's riding the school bus. Turning around, he and his fellow classmates see the ring. The bus is traveling on the Queensboro Bridge from Manhattan to Queens, and using that as a starting point, Imgur user Jester651 was able to piece together the ring's exact location. After mapping out the ring's general location and looking at the close-up shot of the street where several buildings are on fire, presumably because of that ring (or whatever came out of it if it is indeed a portal), this fan has inferred that the ring is hovering roughly above the intersection of W 4th Street and W 10th Street, which is approximately the center of Greenwich Village.
The Avengers: Infinity War trailer was also cut to make it look like Tony Stark was looking up at the ring while he's hanging out with Bruce Banner, Doctor Strange and Wong near the Sanctum Sanctorum. However, it turns out that whatever Tony is shocked to see, it's not the ring. Like in the comics, the MCU's Sanctum is located at 177A Bleecker Street, and since Tony is looking southeast, that means that he's looking in the direction of the Williamsburg Bridge. So not only can Tony barely see anything in the distance from where he's positioned on the street, more importantly, he's not even looking in the same direction as where the ring probably is floating. In fact, when mapping out the two locations, the ring is positioned "behind" where Tony and his allies are, though some commotion has still made its way to their area.
Whatever the alien ring is, it can't mean anything good for Earth's Mightiest Heroes and New York City's citizens. It's possible Spider-Man and Iron Man may attempt to head to the ring to figure out what its purpose is, though there's no guarantee they'll make it there. Of course, New York won't be Thanos' only Earth target, as the Avengers: Infinity War trailer showed that a giant battle will erupt in Wakanda, which is suspected to be the location of the final Infinity Stone.
Avengers: Infinity War opens in theaters on May 4. Be sure to also scan through our Marvel movies guide to see what other MCU projects will be released over the next few years.