Today on New Scientist: 14 June 2012

Galaxy pair look like foes but have never met

These galaxies look like they're in the middle of a full-on cosmic collision, but they're actually separated by tens of millions of light years of space

Zoologger: Angry lizard starts fights for no reason

Most animals don't start fights with other species as there's simply no point - but nobody told the slap-happy Dalmatian wall lizard

Genetically modified crops encourage beneficial bugs

Farmers who would love to control aphids without spraying pesticides may be helped if their neighbour is growing certain genetically modified crops

All eyes on China's green leap forward

The west can learn from China's foray into environmental economics

You may carry cells from siblings, aunts and uncles

Male cells found in the umbilical cord blood of baby girls with older brothers suggests fetal cells cross between mother and baby more than once thought

Small, cheap black-hole hunter could be new NASA model

Now in orbit around Earth, the NuSTAR space telescope will produce images 10 times as crisp as those of any previous telescope

Video game graphics outpace console hardware

Games developers have learned new tricks for exploiting years-old hardware, leading to stunning graphics

Hormone hangovers spell financial doom

Financial crises are down to male traders' hormonal mood swings, evolution and culture combine, and life's better if digital things work together

Black holes could act as cosmic Rosetta stones

A mathematical makeover means these strange objects could be used to translate between gravity and quantum mechanics

China leads the march for the green economy

Quantifying the financial value of services provided by ecosystems will be a hot topic at the Rio+20 conference - and China is taking the lead

US fails on Happy Planet Index

The world looks very different when countries are measured according to quality of life and environmental sustainability

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