Tag Archive for 'Frontier Fields'

An artist’s impression of the early Universe. Image credit: NASA / ESA / Hubble / M. Kornmesser.

Astronomers Find No Evidence of Elusive First-Generation Stars in Early Universe

Jun 4, 2020 by News Staff

Astronomers using the NASA/ESA Hubble Space Telescope have found no evidence of hypothetical first-generation stars — called Population III stars...

The galaxy cluster Abell S1063 was observed by the NASA/ESA Hubble Space Telescope as part of the Frontier Fields Program. The huge mass of the cluster -- containing both baryonic matter and dark matter -- acts as cosmic magnification glass and deforms objects behind it. In the past astronomers used this gravitational lensing effect to calculate the distribution of dark matter in galaxy clusters. A more accurate and faster way, however, is to study the intracluster light (visible in blue), which follows the distribution of dark matter. Image credit: NASA / ESA / M. Montes, University of New South Wales.

Intracluster Light Illuminates Dark Matter in Galaxy Clusters

Dec 20, 2018 by News Staff

Dark matter is a mysterious substance that makes up about 85% of the matter in the Universe. It does not emit any kind of electromagnetic radiation and...

With the final observation of the distant galaxy cluster Abell 370 -- approximately 6 billion light-years away -- the Frontier Fields program came to an end. Abell 370 is one of the very first galaxy clusters in which astronomers observed the phenomenon of gravitational lensing, the warping of spacetime by the cluster’s gravitational field that distorts the light from galaxies lying far behind it. This manifests as arcs and streaks in the picture, which are the stretched images of background galaxies. Image credit: NASA / ESA / Hubble / HST Frontier Fields.

Abell 370: Hubble Team Releases New ‘Frontier Fields’ Image

May 4, 2017 by News Staff

This new image from the NASA/ESA Hubble Space Telescope is one of the best ever views of the massive galaxy cluster Abell 370. The image (hi-res version)...

Abell 2744 takes on a ghostly look where total starlight has been artificially colored blue in this Hubble view. Image credit: NASA / ESA / IAC / HFF Team / STScI.

Astrophysicists Unveil Most Detailed Maps of Dark Matter to Date

Mar 2, 2017 by News Staff

A team of astrophysicists led by Yale Professor Priyamvada Natarajan has unveiled the most detailed maps to date of dark matter, offering a detailed case...

In the center of this Hubble image is the immense galaxy cluster Abell S1063, located 4 billion light-years away, and surrounded by magnified images of galaxies much farther. Image credit: NASA / ESA / J. Lotz, STScI.

Hubble Snaps Extraordinary Image of Galaxy Cluster Abell S1063

Jul 21, 2016 by News Staff

The NASA/ESA Hubble Space Telescope has captured a striking photo of Abell S1063, a massive cluster of galaxies in the constellation Grus. In the center...

This Hubble image shows a giant group of galaxies in the constellation of Leo. Image credit: NASA / ESA / Hubble / Judy Schmidt, www.geckzilla.com.

Hubble Spots Giant Group of Galaxies in Leo

May 23, 2016 by News Staff

The NASA/ESA Hubble Space Telescope has captured a stunning image of an enormous group of galaxies in the constellation of Leo. This Hubble image shows...

New images from the NASA/ESA Hubble Space Telescope show the faintest and earliest known galaxies in the Universe. This image shows the galaxy cluster MACSJ0717.5+3745 (MACS0717). It is one of the most massive galaxy clusters known, and it is also the largest known gravitational lens. Of all of the galaxy clusters known and measured, this cluster lenses the largest area of the sky. Image credit: NASA / ESA / HST Frontier Fields Team / STScI.

Astronomers Discover 252 Ultra-Faint Dwarf Galaxies in Early Universe

Oct 22, 2015 by News Staff

Using observations from the NASA/ESA Hubble Space Telescope, astronomers have discovered over 250 ultra-faint dwarf galaxies in three extremely distant...

This Hubble image shows the cluster of galaxies MACS0416.1-2403. Bright yellow ‘elliptical’ galaxies can be seen, surrounded by numerous blue spiral and amorphous galaxies. Gravitational arcs can also be seen. This image forms the test data that the machine learning algorithm is applied to, having not previously seen the image. Image credit: NASA / ESA / J. Geach / A. Hocking.

Astronomers Teach AI to ‘See’ Astronomical Images

Jul 8, 2015 by News Staff

Astronomers at the University of Hertfordshire in Hatfield, UK, have taught a machine to automatically recognize and classify galaxies in astronomical...

This image shows the galaxy Abell2744 Y1, one of the most distant galaxy candidates known. Image credit: NASA / ESA / STScI / IAC.

Abell2744 Y1: Astronomers Discover Extremely Distant Galaxy

Feb 10, 2014 by News Staff

A multinational team of astronomers has reported the discovery of Abell2744 Y1 – one of the most distant galaxies ever found. This image shows the...