Why does nuclear fission produce pear-shaped nuclei?

Nuclear fission is a process in which a heavy nucleus split into two. Most of the actinides nuclei (plutonium, uranium, curium, etc) fission asymmetrically with one big fragment and one small. Empirically, the heavy fragment ...

Naples astride a rumbling mega-volcano

A slumbering Campi Flegrei volcano under the Italian city of Naples shows signs of "reawakening" and may be nearing a critical pressure point, according to a study published Tuesday.

Monitoring Earth's shifting land

The monitoring of land subsidence is of vital importance for low-lying countries, but also areas which are prone to peculiar ground instability.

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