Monday, October 18, 2010

Stellar mysteries

Two unusual stories of stars were in the news last week:

1.  a pulsar discovered that doesn’t seem to have the right type of surface magnetic field for the way pulsars are normally meant to work.   This means there is a bit of work to be done to see how this type of pulsar gets its power.  (My comment:  first alien artefact found?)

2. the Milky Way seems to have kinks in its arms, making it a bit more like a pinwheel than your usual Andromeda galaxy, curvy armed, classic shape.  Other galaxies that look like this have been seen before, so this is not considered completely weird, apparently.

But – how does any galaxy get angles in arms like that?  I would have thought that nature (and gravity in particular) loves circles and curves.   Odd.

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