The european southern observatory telescope in chile has an outside chance of finding them next year : a new instrument there could detect planets as low as about 15 times earth ' s mass by looking for the gravitational tugs each has on its star 明年，位于南美智利的欧洲南方天文台的望远镜有个渺小的机会，或可发现它们：那儿的新仪器将可观察行星对恒星的重力拉扯效应，进而侦测出只比地球质量重15倍的行星。
