The false color image is a map of the radio emission (at a wavelength of 1.3 cm) emitted from the region around the star HL Tau. The candidate protoplanet is marked b. The bar at top left (marked 50 AU) indicates 50 times the Earth-Sun distance on the same scale, or about the size of the orbit of Pluto. HL Tau is located in the center of the image. The star is surrounded by a dusty disc tilted to the line of sight; only the inner part is visible here but its extent is indicated by the white ellipse. The arrows show the direction of the jets of hot gas emitted as overspill from the star growth process.