Monday, 20 May, 2019

Hubble observations put universe's history into one image

Hubble creates stunning mosaic containing roughly 265,000 galaxies Hubble Captures Nearly 265,000 Galaxies in Legacy Field Image | Astronomy
Sandy Nunez | 06 May, 2019, 11:12

It has been called the Hubble Legacy Field and shows us how the distant universe looked like, some 500 million years after the Big Bang.

The team also says that galaxies show when the chemical elements originated and enabled the conditions that could support life.

"Now that we have gone wider than in previous surveys, we are harvesting many more distant galaxies in the largest such dataset ever produced", Garth Illingworth of the University of California, Santa Cruz, leader of the team that assembled the image, said in a statement.

The new Hubble Legacy Field image covers nearly the width of the full moon.

Meanwhile, the HLF team is working on a second set of images, that will include more than 5,200 Hubble images from another area of the sky.

Feast your eyes on this: The Hubble Space Telescope spotted what NASA and the European Space Agency (ESA) are calling a "perfect specimen" of a spiral galaxy, the stunning NGC 2903.

"With images at so many frequencies, we can dissect the light from galaxies into the contributions from old and young stars, as well as active galactic nuclei". Hubble pointed to a small patch of sky over 10 days in December of that year, producing 100 hours of total exposure time (like leaving the shutter open on your camera).

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Scientists note that deep-field views of galaxies like these help them to trace the expansion of the universe to develop an understanding of the physics of the cosmos. According to NASA, no image will surpass the Hubble Legacy Field until the next generation of space telescopes are launched. The mosaic of images seen here document 16 years of observations for the NASA/ESA Hubble Space Telescope. The new portrait, a mosaic of multiple snapshots, covers nearly the width of the full Moon, and chronicles the universe's evolutionary history in one sweeping view.

The Hubble telescope has captured a dazzling new photograph of a spiral galaxy, NGC 2903.

"Such exquisite high-resolution measurements of the numerous galaxies in this catalog enable a wide swath of extragalactic study", Katherine Whitaker, catalog lead researcher and a physicist at the University of CT, said in the statement.

This graphic reveals close-up images of 15 galaxies from the 265,000 galaxies in the Hubble Legacy Field.

Like watching individual frames of a motion picture, the Hubble deep surveys reveal the emergence of structure in the nascent universe and the subsequent dynamic stages of galaxy evolution.

Van Dokkum said astronomers hope to broaden the multi-wavelength range of the HLF images to include longer-wavelength infrared data and high-energy X-ray observations from two other members of the NASA Great Observatories program: the Spitzer Space Telescope and Chandra X-ray Observatory.

Below, you can explore the full-size Hubble image. The galaxy was received "Hubble" to study the Central regions 145 a nearby spiral galaxies.