提供一个英语段落，并要求模型将该段落翻译成中文。
以下是一段英语新闻报道： 
"Astronomers have discovered a new exoplanet orbiting a star 63.4 light years away. The new planet is believed to be similar to Earth in size and composition, and its orbit is located in the habitable zone of its star, meaning that it could potentially have liquid water and support life."
天文学家已经发现了一颗距离地球63.4光年的新外行星。这颗新行星被认为在大小和成分上类似于地球，而且其轨道位于其恒星的宜居带内，这意味着该行星可能具有液态水并能支持生命。