【一句话翻译】A solar system astronomers say should not be possible

【汉译英 Chinese to English】

研究人员利用美国宇航局和欧洲航天局的望远镜发现了一个距离地球约116光年的系外行星系统，他们认为该系统可能会颠覆我们对行星形成方式的认知。

An exoplanetary system about 116 light-years from Earth could flip the script on how planets form, according to researchers who discovered it using telescopes from NASA and the European Space Agency.

Note: For this newly discovered solar system, the outmost planet is a rocky planet. Astronomers have long believed the outmost planet of any solar system must be a gas planets, based on solar system formation theory.