Man at B&Q wrote:

Err, no. Replace "supernova explosions" with "supernovae" and
everything is fine.

Err yes, the OP obviously intended to convey a particular meaning which
your version does not. So you're wrong.

I know from past experience that you're among the most arrogant of the
arrogant ****s posting here, but to start to tell other people that you
know better than they how they meant to convey their message is
startling chutzpah even by your elevated standards.