1.   And the population of objects that Steidel is counting in that far sector of the universe just about matches the population of bright galaxies that exists today.

2.   It had previously not been clear that such bright galaxies had formed that early.

3.   They noticed an unusually bright blue galaxy in the background of one of the images.

4.   Until now, he explained, astronomers looked for evidence of dark matter only through its gravitational influence on bright galaxies.

5.   Moderately bright galaxies, however, were identified in three other quasars observed, he added.