Hubble Space Telescope (HST) imaging showing the explosion site of 2019yvr from 2.5 years before its explosion. Upper left: the supernova itself is seen in an image from the Gemini-South telescope 72 days after it exploded. Lower left: a zoom in to the same site in the pre-explosion HST image, showing a single source that appears to be the progenitor star of 2019yvr.
Charles Kilpatrick / Northwestern University