This galaxy appears to have 'bulked up' amazingly quickly, within a few hundred million years after the Big Bang. It made about eight times more mass in terms of stars than are found in our own Milky Way today, and then, just as suddenly, it stopped forming new stars. It appears to have grown old prematurely. |
This galaxy appears to have 'bulked up' amazingly quickly, within the first few hundred million years after the big bang. |