Thor (Chris Hemsworth) landed on Earth in the 2011 standalone movie after his father, Odin (Anthony Hopkins), deemed him unworthy, stripped him of his armor and powers, and cast him out of Asgard.
He first encountered Jane (Natalie Portman), her intern Darcy Lewis (Kat Dennings), and astrophysicist Erik Selvig (Stellan Skarsgård) in a desert in New Mexico as they were investigating an aurora-borealis-esque phenomenon.
In 2015's "Avengers: Age of Ultron," Thor mentioned that Jane's work on the convergence in "Thor: The Dark World" (2013) made her the world's most popular astronomer.
Little is known about Jane's life prior to the events of the first "Thor" film. She attended Culver Universe, where her dad and Erik met. Jane also has an ex-boyfriend named Donald Blake, M.D., who she described as "good with patients and bad with relationships."