Janet Van Dyne is dead. She was the only important casualty in the Skrull invasion. She may be gone but never forgotten by all her friends, comrade in arms, fellow Avengers. But no one is more devastated by her death than Hank Pym, her husband, who returned to Earth just to realize that he lost Janet forever.
Also reprints: Ant-Man and the Wasp! vs. The Creature from Kosmos! from Tales To Astonish #44 and also story Court-Martial from The Avengers #215.