The nova everyone missed

[Drethon]

http://www.space.com/scienceastronomy/0 ... found.html

That led to a puzzle. An explosion of this type does not immediately release X-rays, because the expanding cloud of debris created in the detonation temporarily masks them. That meant the explosion must have taken place many days before XMM-Newton spotted the X-ray burst, although no one reported seeing it.

Wouldn't it be amusing if the nova suddenly decided to brighten after the x-rays have been detected and leave them all scratching their heads?

[nick c]

From the article:

However, the event does make astronomers wonder whether there are other discoveries going unnoticed.

This statement can be applied, ironically, in a way that the author did not intend. Yes, there are other discoveries that astronomers haven't noticed, first and foremost...the Universe is ELECTRIC!

Nick C