The team
found typical galaxies forming stars in the Universe two billion years after the Big Bang have only twenty percent of metals (elements heavier than Helium) compared with those in the present day Universe.
Not exact matches
While a
typical galaxy contains billions of stars, a number of tiny
galaxies have been
found in recent years that do not fit the classic picture and instead resemble the groups of stars known as star clusters.
Follow Roger Highfield as he time - travels, wages biological warfare and
finds the secret of
galaxy clusters in his soup — all in a
typical Monday
What they did
find is a nearby
galaxy that's producing stars at a rapid pace — the equivalent of about 350 suns per year, a hundred times faster than
typical galaxies.
What we've really been trying to do is to
find the more
typical galaxies from the era about a billion years after the Big Bang.
Using Hubble we now routinely
find black holes in perfectly
typical, normal, boring
galaxy centres.