The BBC brings you all the week's science news.
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Gravity and ripples in the fabric of space time - what do these mean for us?
A sea sponge has proved effective at killing malarial parasites in human liver cells
Salamanders' abilities to regrow limbs could be used to help us alleviate arthritis
Could this pterosaur have flown from England to Australia?
A major expedition to study ice around the North Pole will take place this winter