高普考/三四等/高員級◆英文題庫下載題庫

At the start of the Dark Ages, there were no galaxies, no stars, and no planets. Even if there had been, we 

would not be able to spot them. That is because hydrogen-gas clouds are nearly opaque to   38   light. No 

ordinary   39   will ever be able to see what happened afterward.   40   somehow the matter that started as a 

sea of individual atoms managed to transform itself into something more. So back in the early 1990s, Avi Loeb 

at Harvard University began lobbying theorists to make a major push to   41   through computer simulations 

how the first stars formed. The plan was to   42   the young universe digitally, plug in equations for the 

relevant physics, and see what must have happened.