Janet Van Dyne is a fictional character in the Marvel Comics universe, first appearing in 1963. She is known as the superheroine Wasp, possessing the ability to shrink in size and fly, thanks to her specially designed suit. Janet is also a skilled fighter and has a keen intellect, often using her scientific knowledge to aid her allies. As a founding member of the Avengers, Janet has played a significant role in many storylines. She is the daughter of scientist Hank Pym, who created the Pym Particles that allow her to change size. Over the years, Janet has become a prominent figure in the superhero community, known for her leadership and bravery.