Young说新闻E032（跟读版）

Astronomers are offering the general public a once-in-a-lifetime opportunity: the chance to discover a new planet in our solar system. Many astronomers now think there may be a massive, undiscovered planet lurking in the far reaches of our solar system. Right now, however, the existence of this planet is theoretical. So the hunt is on to actually capture an image of it. The obvious way to look for the new planet is to point large telescopes at the patch of sky where theory says it ought to be. 添加杨磊老师微信younglei409，拉你入免费英语学习群！