8 年前
视频简介
It’s the start of the spring term in a small northern town, heralding swimming lessons, hanging out with best friends, new classes and new possibilities. But this year, things are different for 14-year-old Sam. While her friends are moving on, focusing on boys, experimenting with drugs, Sam is too uncomfortable to even take off her bathing suit in front of the other girls. Afte...。本课程讲述了天文学领域三个有趣而又发展迅速的课题：太阳系外行星，黑洞和暗能量。这些课题将明显提高在未来数年我们对天文学的认识。它探讨的不仅是我们现在所了解的也包括我们所不了解的，以及天文学家是如何探索的。。
标签
惊悚
