Washington, Feb 19 : NASA's Galaxy Evolution Explorer has identified dwarf galaxies forming out of nothing more than pristine gas likely leftover from the early universe.
Dwarf galaxies are relatively small collections of stars that often orbit around larger galaxies like our Milky Way.
The findings surprised astronomers because most galaxies form in association with a mysterious substance called dark matter or out of gas containing metals.
The infant galaxies spotted by the Galaxy Evolution Explorer are springing up out of gas that lacks both dark matter and metals.
Though never seen before, this new type of dwarf galaxy may be common throughout the more distant and early universe, when pristine gas was more pervasive.