Some classes of stars create light elements, such as oxygen and silicon; others also craft heavier ones, such as iron and ...

A companion star may have stripped silicon layers. This provided a new window into stellar death. Astronomers have observed the inner layers of a dying star through a rare type of stellar explosion ...

When ice freezes and thaws repeatedly, chemical reactions are fuelled that can have significant impact on ecosystems. The photo was taken in Stordalen, Abisko. Ice can dissolve iron minerals more ...

At the heart of nearly every galaxy lurks a cosmic giant: a supermassive black hole. These mysterious objects, millions to billions of times more massive than our Sun, exert such powerful gravity that ...

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