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Pulsar wind nebulae

Neutron stars are the detritus of supernova explosions, with masses between one and several suns and diameters only tens of kilometers across. A pulsar is a spinning neutron star with a strong magnetic field; charged particles ...

dateNov 07, 2016 in Astronomy
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Image: NGC 6818 in the constellation of Sagittarius

The NASA/ESA Hubble Space Telescope had imaged NGC 6818 before, but it took another look at this planetary nebula, with a new mix of colour filters, to display it in all its beauty. By showing off its stunning turquoise and ...

dateNov 07, 2016 in Astronomy
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A dead star's ghostly glow

The eerie glow of a dead star, which exploded long ago as a supernova, reveals itself in this NASA Hubble Space Telescope image of the Crab Nebula. But don't be fooled. The ghoulish-looking object still has a pulse. Buried ...

dateOct 27, 2016 in Astronomy
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