Stars

As kids, many of us pondered what stars are made of. Some [grown-up:famous] astronomers, on the other hand, wonder about where stars came from.Now, a study serves up a surprise. Because it seems that the smallest galaxies in the [universe:space] gave rise to an [unexpectedly:undetermined] large proportion of stars. The findings are in the Astrophysical Journal.Most of the stars we see in the sky were formed when the universe was young, just a few billion years after the Big Bang. So to study stellar origins, scientists use telescopes that allow them to see galaxies that are so far away, they're [essentially:eagerly] looking back in time.Previous observations had focused on the star-forming powers of larger galaxies. But in this latest study, researchers used data collected by a [powerful:delightful] camera aboard the Hubble Space Telescope. With this instrument, they could eyeball smaller, dwarf galaxies.