Exoplanet Found by Measuring Star’s Sideways Shift

An extrasolar planet has been found by observing subtle changes in a star’s position in the sky for the first time. The technique, called astrometry, is best suited to finding planets at great distances from their stars, complementing more common techniques, which tend to turn up planets orbiting their stars at close range. The planet’s star is also the lightest known to host a planet, and researchers hope other such discoveries will shed light on how common planets are around low-mass stars, which far outnumber their higher-mass cousins