First exoplanet smaller than Mercury discovered
A planet just larger than the moon has become the smallest known world - but two others could depose it if their sizes are confirmed
Conductor of speech uncovered in the brain
The brain has such fine control over the muscles used to speak that every sound produces different neural activity, a map of which may explain speech quirks
E-cigarettes may soon be sold as life-saving medicine
Some countries ban them, but British regulators are considering electronic cigarettes on prescription - we take a puff on the evidence
New retinal implant gives sight to nine blind people
Electrodes under the retinas of people blinded by disease - but who still have vision-processing neurons - allow them to see again
Exploring points of view from Tycho Brahe's castle
Recalling the passion of Renaissance astronomers for observing the heavens leads one artist to draw links with modern surveillance
How was Earth's life kindled under a cold sun?
An overheated greenhouse, a faster spin, a giant sun, a game of planetary billiards: what explains how Earth got so warm so fast, asks Stuart Clark
Harness vast power of quantum computers... for sums
Quantum computers sound exotic but their killer function could be solving mundane equations very, very fast
Fertiliser makes another reason to eat less meat
It's not a good time to be a meat lover. As the horsemeat scandal spreads across Europe, a report blames livestock for farms' excessive fertiliser use
Immune boost could protect against new killer virus
The new coronavirus that emerged in the Middle East last year could be pegged back by artificially boosting the body's immune response
New satellite will be first asteroid sentinel in space
As a Canadian near-Earth object spotter prepares for lift-off, funds are flooding in to help commercial firms launch their own asteroid hunters
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