[delcaran]

Article says it's a theoretically possible object described as "slow magnetar".

[ianai]

Is that really that mysterious? Just seems they went out of their way for clickbaity title.

[Vetch]

The mysterious (unpredicted/as yet unexplained) aspect is the precise physics of its emission properties. It's a refinement of known physics sure, but that doesn't make it less interesting. Not unlike how finally completing a full physics accounting for how bicycles remain upright would be fascinating even if positively pedestrian.

[dekhn]

That's correct. The original paper doesn't call it mysterious, just "unusual". Science PR people are under a lot of stress to get pageviews.

[rbanffy]

The original description was most likely “hmmm… that’s funny”.

[okokwhatever]

Don't be so serious my friend, it was an easy joke, i know :)