NASAのインスタグラム(nasa) - 3月12日 00時50分

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.
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.

Image credit: NASA, ESA, A. Riess (STScI/JHU)

#nasa #space #hubble #spothubble #galaxy #universe #solarsystem #bright #stars #lightyears #science #pictureoftheday

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