John Rumm wrote:

On 30/10/2010 10:53, Steve Firth wrote:
Man at 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.

And how is the meaning altered by changing it to be grammatically correct?

You seem to have problems with English, I haven't said what you seem to
be alleging that I have said. And your "correction" was not
"gramatically correct". The English plural of supernova is not
"supernovae".