Just like HuDaFuK said, the Alien movies are notable for having explosion sequences, the list goes as follows
The Nostromo self detonates at the end of Alien,
Hadley's Hope has a nuclear meltdown at the end of Aliens,
When the Alien explodes at the end of Alien 3"not sure if that exactly counts"
When the Auriga crashes into earth at the end of Alien Resurrection.
AVP if we count cross overs, when Scar Predator's wrist bomb blows up the pyramid and under ground ice cavern.
Two instances in AVP R where wolf detonates the remains of the crashed Predator scouter ship, and the nuclear explosion destroying all of Gunnison county after the Xenomorph infestation.
And lastly Prometheus when the said ship crashes into the Engineer's Juggernaut to prevent it form reaching earth.
So we'd come to expect an explosions at this point. Michaels Bay's probably joygasming over this.
