Japanese astronomers spot gaseous planets around 2 stars
Japanese astronomers have reported that two evolved stars similar in mass to the Sun, 24 Booties and Gamma Librae, are circled by one and two gas giants respectively. The discovery was made using the radial-velocity method, where Doppler shifts in the star's light spectrum signals an orbiting world. Over 600 exoplanets have been detected so far using the technique.