"Episode 6646", also known as "The Eclipse", is the 6646th episode of the Australian soap opera Neighbours. It premiered on Eleven on 20 May 2013. The episode was written by Jason Herbison and directed by Laurence Wilson. Episode 6646 revolves around an annular eclipse, which changes the lives of several Ramsay Street residents. It was first teased by executive producer Richard Jasek in January 2013. The episode saw several storylines play out with Kyle Canning sustaining serious damage to his eyesight, a child kidnapping, the introduction of a new family and the return of two former characters; Mark Brennan and Brad Willis.

Amber Turner is a fictional character from the Australian soap opera Neighbours, played by Jenna Rosenow. The actress, who had previously appeared in the show as an extra, successfully auditioned for the role of Amber and relocated to Melbourne from Geelong for filming. She said she was excited about joining the cast and seeing what she could do with her character. Amber was created and introduced along with her family, as part of a major overhaul of the show's cast. She made her first screen appearance during the episode broadcast on 7 February 2013. In April 2015, Rosenow announced her intention to leave at the end of her contract, and Amber departed on 8 January 2016. She made a cameo appearance on 5 April.