About ten billion years ago, a large number of stars formed at once. Since then the birth rate has been falling – and in the meantime a kind of cosmic twilight state has begun.
by THOMAS BÜHRKE
The constellation Fornax (Chemical Furnace) consists of only a few faint stars. But cosmologists found the proverbial philosopher’s stone there. Precisely because no bright stars disturb the view of space here, the constellation in the southern sky was a focal point of the Hubble Space Telescope. Between September 2003 and January 2004, he took the farthest-reaching photo of all time: the Hubble Ultra Deep Field (HUDF). With an entire
