This article from berkeley is super relevant, it was published just a few days ago: https://newscenter.berkeley.edu/2015/03/05/distant-supernova-split-four-ways

This article from berkeley is super relevant, it was published just a few days ago: https://newscenter.berkeley.edu/2015/03/05/distant-supernova-split-four-ways-by-gravitational-lens/ https://newscenter.berkeley.edu/2015/03/05/distant-supernova... We can see a supernova 4 different times using gravitational lensing.