Before revision: In 1998 a supernova remnant, RX J0852.0 -4622 , was found in front (apparently) of the larger Vela Supernova Remnant.
After revision: In 1998 a supernova remnant, RX J0852.0 −4622 , was found in front (apparently) of the larger Vela Supernova Remnant.