Powerful magnetars may give way to small black holes
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![](https://www.astronomy.com/wp-content/uploads/sites/2/2021/09/XMMNewton_Magnetarillustration_0813.jpg)
The strongest magnets in the universe may have a shorter-than-expected shelf life.
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First Ever Magnetic Field Reversal In a Massive Black Hole
![](http://www.cfht.hawaii.edu/en/news/MassiveMagnetar/eso2313a.jpg)
Massive Magnetar
![](https://earthsky.org/upl/2021/06/magnetar_chandra_spitzer_Blumer_NASA_2020.jpg)
What is a magnetar?
![](https://cdn.mos.cms.futurecdn.net/HRfRCLsrHeBcWZ5VR2J4iN.png)
Massive Black Hole Has Surprisingly Weak Magnetic Field
![](http://noirlab.edu/public/media/archives/images/screen/noirlab2323a.jpg)
Astronomers Find Progenitor of Magnetic Monster
![](https://content.teachastronomy.com/taweb/images/textbook/hrthumbs/47e40839d0b2a0c6a1abe0784d1e1aeccc4f6ddf.jpg)
Teach Astronomy - Magnetic Stars
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Is a magnetar a neutron star? Can magnetars spin? Are the
![](https://miro.medium.com/v2/resize:fit:1000/1*SOCVjL00ABY7o8l5PtGCBw.jpeg)
These stars would rip the iron out of our blood - what are
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Unusual, long-lasting gamma-ray burst challenges theories about