Death of a dynamo – a hard drive from space

21 Jan 2015

Hidden magnetic messages contained within ancient meteorites are providing a unique window into the processes that shaped our solar system, and may give a sneak preview of the fate of the Earth’s core as it continues to freeze.

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An image of the star Gilese 581 (bottom of image), with an illustration of the debris disc superimposed to show its position.

Low-mass planets make good neighbours for debris discs

27 Nov 2012

Astronomers using the Herschel Space Observatory have detected massive debris discs around two nearby stars hosting low-mass planets. The discovery suggests that debris discs may survive more easily in planetary systems without high-mass planets.

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