Motohide Tamura

A baby planet absorbing gas has been discovered around the star AB Aurigae. Light from hydrogen revealed its growth with a unique pattern—astronomers observed this for the first time in a planet embryo. This is direct evidence of how giants like Jupiter grow.

Astronomers have reported the discovery of four cold giant planets around low-mass stars. They were betrayed by brief anomalies in the light curves — as if a water droplet on a windowpane momentarily focused distant light. All planets lie beyond the snow line, up to 6 astronomical units from their s