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(by davebrosha)
(Fonte: geologise)
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![Rare Element on Earth Discovered in Ancient Starlight
Light from three ancient stars at the edge of the Milky Way indicates that the stars contain tellurium, a brittle, superconducting element that is rare on Earth.
The cosmic discovery, which also spotted traces of other heavy elements, supports the theory that these elements were synthesized in the rapidly collapsing cores of rare supernovas (stellar explosions).
[Read the full article here]](http://25.media.tumblr.com/tumblr_lztba6EZ561r2zmv6o1_500.jpg)
Rare Element on Earth Discovered in Ancient Starlight
Light from three ancient stars at the edge of the Milky Way indicates that the stars contain tellurium, a brittle, superconducting element that is rare on Earth.
The cosmic discovery, which also spotted traces of other heavy elements, supports the theory that these elements were synthesized in the rapidly collapsing cores of rare supernovas (stellar explosions).
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Picture of the Day: The Coming of a Nearby Supernova
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Hevelius: 1652 eclipse
Johannes Hevelius, Epistolae IV (Danzig, 1654), plate.found: here
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