NASAのインスタグラム(nasa) - 6月20日 00時47分

They may be little, but they pack a big star-forming punch. New observations from our Hubble Space Telescope show small galaxies, also known as dwarf galaxies, are responsible for forming a large proportion of the universe's stars.
Hiding among these thousands of galaxies are faint dwarf galaxies residing in the early universe, between 2 and 6 billion years after the big bang, an important time period when most of the stars in the universe were formed. Some of these galaxies are undergoing starbursts. Starburst galaxies form stars at a furiously fast rate, far above what is considered by experts to be a normal rate of star formation.

Image Credit: NASA and ESA

#nasa #hst #hubble #space #astronomy #galaxies #stars #bigbang #science

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