Scientists have worked out the unique anatomy that allows giraffes' long, spindly legs to support their weight.

A major study into the potential of fracking to contaminate drinking water with methane is published, highlighting where shale deposits and aquifers coincide.

Scientists on rival projects looking for evidence that the early Universe underwent a super-expansion are in discussion about working together and publishing a joint paper.

Europe's Rosetta spacecraft is edging ever closer to its quarry - the 4km-wide Comet 67P/Churyumov-Gerasimenko.

Disposing of fossil fuel wastewater is likely to have triggered a sharp rise in earthquakes in the US state of Oklahoma, say scientists.