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Chemical fingerprints of ancient supernovae found

A Carnegie-based search of nearby galaxies for their oldest stars has uncovered two stars in the Sculptor dwarf galaxy that were born shortly after the galaxy formed, approximately 13 billion years ago. The ...

dateMar 23, 2015 in Astronomy
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Ferromanganese crusts record past climates

The onset of northern hemispheric glaciation cycles three million years ago has dramatically changed Arctic climate. Scientists of the GEOMAR Helmholtz Centre for Ocean Research Kiel, Germany have now for ...

dateApr 09, 2015 in Earth Sciences
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Fishing amplifies forage fish collapses

A new study shows for the first time that fishing likely worsens population collapses in species of forage fish, including herring, anchovies and sardines. Some of the largest fisheries in the world target ...

dateApr 06, 2015 in Ecology
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