NASA 搬运工 D48
（最近感冒懈怠更新啦 我的错ಠ_ಠ）
This enchanting, star-studded galaxy captured by our Hubble telescope (@NASAHubble) lies about 65 million light-years away from Earth, which means that the light that we see now left it 65 million years ago, just when dinosaurs became extinct.
我们的哈勃望远镜（@NASAHubble）捕获的这颗迷人，星光璀璨的星系距离地球约6500万光年，这意味着我们现在看到的光线在6500万年前就已经离开了，就在恐龙灭绝的时候。
This galaxy has had its fair share of dramatic events. In 2011, astronomers observed the explosion of a supernova in the galaxy (not visible in this image) and have observed many pulsating stars called Cepheid variables. These stars change their brightness at a rate matched closely to their intrinsic luminosity, making them ideal cosmic points for measuring accurate distances to relatively nearby galaxies.
这个星系有一些戏剧性事件。 2011年，天文学家观测到星系中超新星的爆炸（在本图中不可见），并观测到许多叫做造父变星的脉动星。这些恒星以与其内在光度相近的速度改变它们的亮度，使它们成为衡量距相对附近星系精确距离的理想宇宙点。
Image credit: NASA, ESA, A. Riess (STScI/JHU)
#nasa #space #hubble #spothubble #galaxy #universe#solarsystem #bright #stars #lightyears #science#pictureoftheday
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