观星指南（2023年2月）
2月份的天空会发生什么？
最亮的行星聚集在一起，御夫座和两个你可能想要了解的天狼星星团。
2023 年 2 月
天文·每日一图
恒星TRAPPIST-1的第七颗行星
2023年2月1日 The Seventh World of Trappist-1 Illustration Credit & Copyright: Michael Carroll Explanation: Seven worlds orbit the ultracool dwarf star TRAPPIST-1. A mere 40 light-years away, many of the exoplanets were discovered in 2016 using the Transiting Planets and Planetesimals Small Telesco
NASA·每日一图
NASA肯尼迪航天中心的植物群和动物群
In this photo from Oct. 14, 2008, a great blue heron stands watch among a pond of water lilies on NASA’s Kennedy Space Center. It is one of 310 species of birds that inhabit the National Merritt Island Wildlife Refuge, which shares a boundary with Kennedy. The marshes and open water of the ref