Galaxy Hunter

Variability-
-Does the variability depend on a sample size?
As a sample size increases, range decreases, which means the variability decreases. At first, results rapidly become less variable, then the rate at which results become less variable slows down. As a larger and larger sample, variability keeps decreasing, but very slowly. The slow loss of variability continues until variability is zero at full size.

The galaxy images in the HDF's represent an earlier period in the history of the universe.

Billions and billions of galaxies populate the universe. The Hubble Space Telescope has unmasked many of them in two of the clearest, most distant views ever obtained, called the Hubble "Deep Fields" (HDF's). One view peers northward and the other peers southward.
Scientists have used math to unlock many galactic secrets hidden in these two views.

The Hubble Deep Field North is one of the deepest, sharpest, multi-color images of the faintest universe in visible light. The image was made by aiming the Hubble Space Telescope at one seemingly empty point in the northern sky near the Big Dipper for 10 days in December 1995. About a thousand never-before-seen galaxies are visible in this view of the universe.

The Hubble Space Telescope captured a dazzling assortment of never-before-seen galaxies. The Hubble Deep Field South complements the original Hubble Deep Field taken in late 1995. The constellation Tucana can only be viewed from the southern hemisphere. The 10-day-long observation doubled the number of far-flung galaxies available.