According to the HST data, very distant (and early) galaxies tend to be
A) larger and bluer that modern galaxies.
B) very well formed into clusters of nothing but spirals.
C) nothing but quasars.
D) redder, due to the recession of the universe.
E) smaller, bluer, and more irregular than modern ones.

Question

Quizplus · Accepted Answer

The Hubble Space Telescope (HST) data shows that very distant (and early) galaxies are generally smaller, bluer, and more irregular than modern galaxies. This is because these galaxies are observed at a time when they were still forming and evolving, leading to their smaller size and irregular shapes. The blue color indicates active star formation.

According to the HST Data, Very Distant (And Early) Galaxies