SCIENCE STUDY

Hubble’s time in space coming to an end

作者：Teens

Built by NASA, Hubble is one of the most powerful telescopes in the world. For almost 30 years, it’s helped us to see parts of space that we would never have dreamed of seeing before.

点击阅读全文

对本期电子报订户、有效期内的VIP教师会员和本学期高一尊享卡用户，我们开放所有内容：
如果您拥有以上权限，请点这里登录；
订阅电子报，请点这里；
激活VIP教师卡，请点这里；
激活21英语尊享卡，请点这里。