[ExI] Hubble Legacy Field

BillK pharos at gmail.com
Thu May 2 16:30:37 UTC 2019

It's full of stars!  No - It's full of galaxies!

Hubble Astronomers Assemble Wide View of the Evolving Universe
Release date: May 2, 2019


Astronomers have put together the largest and most comprehensive
"history book" of galaxies into one single image, using 16 years'
worth of observations from NASA's Hubble Space Telescope.

The deep-sky mosaic, created from nearly 7,500 individual exposures,
provides a wide portrait of the distant universe, containing 265,000
galaxies that stretch back through 13.3 billion years of time to just
500 million years after the big bang. The faintest and farthest
galaxies are just one ten-billionth the brightness of what the human
eye can see. The universe's evolutionary history is also chronicled in
this one sweeping view. The portrait shows how galaxies change over
time, building themselves up to become the giant galaxies seen in the
nearby universe.

This ambitious endeavor, called the Hubble Legacy Field, also combines
observations taken by several Hubble deep-field surveys, including the
eXtreme Deep Field (XDF), the deepest view of the universe. The
wavelength range stretches from ultraviolet to near-infrared light,
capturing the key features of galaxy assembly over time.

Hubble Legacy Field Video zoom
Duration: 50 seconds


The video begins with a view of the thousands of galaxies in the
Hubble Ultra Deep Field and slowly zooms out to reveal the larger
Hubble Legacy Field, containing 265,000 galaxies.

No comment - Just Wow!!!


More information about the extropy-chat mailing list