During the fight, Steve approaches Diana who can't hear him speak due to an explosion temporarily rupturing her eardrums. Steve, after much talking, departs and leaves Diana with his watch before boarding the plane which is taking off with the mustard gas. Ares eventually restrains Diana, imploring her to surrender and realize the futility of their fight. Diana notices the plane in the sky as she's pinned to the ground and watches in horror as it explodes with Steve sacrificing himself to save billions of lives.
The Crisis on Infinite Earths crossover of 1986 was designed and written with the purpose of streamlining most of DC's characters into one more-focused continuity and reinventing them for a new era, thus Wonder Woman and Steve Trevor were declared to come from the Earth-Two dimension, and along with all of their exploits, were erased from history, so that a new Wonder Woman character, story and timeline could take priority.
I remember when I read in the news that Wonder Woman had been cast and my heart sank ... I'm sure we wouldn't have made the same choice. And then I started paying attention to her, and watching her and looking at her and it was just unbelievable. Frankly, I think they did a better job than I could have because I don't know that I would have scoured the earth as hard to find her ... They were looking for all the same things I would have looked for—all the values that Wonder Woman stands for exuding from someone in an honest way, and boy did they find it ... She shares every quality with Wonder Woman and that's no joke. It's one of those rare things. You need someone who can appear to be Wonder Woman on screen ... Every once in a while, there's superhero casting that transcends, because that person is so authentic to the character that it becomes identified with them, like Lynda Carter or Christopher Reeve.
Although seemingly only a purely decorative aspect of her costume, in the golden and silver ages, her earrings were sometimes depicted as giving her the ability to breathe in outer space. Gelignite Grenade Earrings and Grappling Hook Bracelet - In her depowered mod girl phase, Diana on rare occasion employed these devices, which were concealed to look like regular parts of her costume. She acquired them from a demolitions expert and villain which she had helped reform. The grenades were strong enough to blast through a thick steel door and the grappling hook could support easily her body weight to aid in climbing.
Pérez and Potter wrote Wonder Woman as a feminist character, and Pérez's research into Greek mythology provided Wonder Woman's world with depth and verisimilitude missing from her previous incarnation. The incorporation of Greek gods and sharply characterized villains added a richness to Wonder Woman's Amazon heritage and set her apart from other DC heroes.
^ Sanderson, Peter (September–October 1981). "Thomas/Colan Premiere Wonder Woman's New Look". Comics Feature. New Media Publishing (12/13): 23. The hotly-debated new Wonder Woman uniform will be bestowed on the Amazon Princess in her first adventure written and drawn by her new creative team: Roy Thomas and Gene Colan...This story will appear as an insert in DC Comics Presents #41.