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Today on New Scientist: 16 September 2011

Revving up for Researchers' Night

Across Europe science will be taking to the streets next Friday. Researchers' Night revellers, let us know what they - and you - get up to!

Neutron star smash-ups may forge gold

Violent collisions between dense former shining stars may be why gold, lead, thorium and other heavy elements exist in such abundance

Brainy molluscs evolved nervous systems four times

Slimy and often sluggish they may be, but some molluscs deserve credit for their brains - which, it now appears, evolved independently, four times

Nokia app powers portable brain scanner

A portable EEG scanner powered by a smartphone with a 3D brain-activity modelling app could make life a lot easier for people with neurological problems

Friday Illusion: Mystery of the collapsing house

Help us identify the illusion in this week's challenge to win a prize

Attoclock turns electrons into movie stars

An electron has been caught fleeing a molecule - the first step in almost every chemical reaction

Pluto's icy exterior may conceal an ocean

If the dwarf planet's core has as much radioactive potassium as scientists think, it may have a subsurface ocean and the conditions to sustain life

Feedback: Canine two-dimensional perception

More on hiding from dogs in trees, style tips for recreational drug users, copyright lawyers in space, and more

Elemental threat to everyday tech spelled out

The supply of elements needed for flame retardants, catalytic converters and many other important products is at risk

The next Pangaea will have pieces missing

Hotspots in the mantle could affect tectonic plates so much that South America and Antarctica will stay put as the other continent collide

Astrophile: The most surreal sunset in the universe

Reminiscent of Tatooine in Star Wars, a planet has been discovered in orbit around two stars

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