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(PhysOrg.com) -- Just as water, ice, and steam are all phases of the same material that are influenced by temperature and pressure, new research shows how transitions of state work in very simple lattices primarily composed of copper.

A simulation of galactic growth shows how a galaxy akin to our own Milky Way might have appeared 10 billion years ago.

Sleep deprivation can lead to plenty of unwise decisions, which researchers have long tied to flagging attention and short-term memory . But a new study shows how just one night of missed sleep can make people more likely to chase big gains while risking even larger losses--independent of their tapering attention spans. [More]