Not exact matches
This survey, called the «Hubble Ultra Deep Field,» (
in 1995 and 1998) was targeted on a region of the
sky that was nearly devoid of known
objects, so as to be (hopefully) representative of conditions
in the
distant Universe.
The Hubble Space Telescope's «Ultra Deep Field» reveals about 10,000
objects in a tiny patch of
sky, including some of the most
distant galaxies ever seen.
Guyon adds that the system will help astronomers to study the
skies more efficiently, by bringing large
objects, such as nearby galaxies, into focus all at once, and by allowing more
distant objects to be studied
in a single snapshot.
We train our telescopes on small patches of
sky for long spells, trying to drink
in as much faint light from
distant objects as possible.
For instance, look at the recent use of the Cosmic Evolution Survey, using the Hubble Space Telescope to study gravitational lensings [
in which the gravitational pull of galaxies and dark matter bends the light from more
distant objects]
in an area of the
sky nine times the apparent surface area of the full moon.
The instrument is the «best tool» for picking out dim, extremely
distant objects lost
in huge swaths of
sky, Batygin said.
The bigger the telescope's aperture, the more light is collected and therefore the dimmer and more
distant the
objects in the night
sky that can be imaged.
Going outside at night at one of these observatories and seeing the eyes of giant telescopes staring up at the
sky, gathering
in photons from
distant objects, is an extraordinary experience.