NASAのインスタグラム(nasa) - 11月23日 08時00分
🎶 Baby stars! 🎶 ✨ This galaxy might be bursting with star formation and stellar newborns.
Our @NASAHubble space telescope turned its powerful eye towards galaxy NGC 3749, over 135 million light-years away from Earth. This galaxy shows strong emission lines (signs of emission from elements within a galaxy's spectrum of light), suggesting that it has plenty of star-forming material and energetic new stars.
This study technique, known as spectroscopy, is used by astronomers to understand a galaxy’s type and composition, the density and temperature of any emitting gas, the star formation rate, or how massive the galaxy’s central black hole might be.
Image Credit: ESA/Hubble & NASA, D. Rosario et al.
#hubble #galaxy #babies #stars #universe #esa #nasa
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