Just counting the number of galaxies in a patch of sky provides a way to test astronomers' theories of galaxy formation and evolution. However, such a simple task becomes increasingly hard as astronomers attempt to count ...
Astronomy
Nov 18, 2015
4
79
Observations by the NASA/ESA Hubble Space Telescope have taken advantage of gravitational lensing to reveal the largest sample of the faintest and earliest known galaxies in the Universe. Some of these galaxies formed just ...
Astronomy
Oct 22, 2015
0
325
Astronomers study the elements scattered between the stars to learn about the internal workings of galaxies, their motion and chemistry. To date, however, attempts to detect the telltale radio signature of carbon in the very ...
Astronomy
Jun 24, 2015
2
931
In their search for gravitational waves—stretches in space-time produced by dramatically violent events in the distant universe—researchers at the Laser Interferometer Gravitational-Wave Observatory (LIGO) have created ...
Astronomy
Jun 8, 2015
2
49
The unprecedented sensitivity of space telescopes has powered a revolution over the past decade in our understanding of galaxies in the young universe during its first billion years of existence. These primitive objects are ...
Astronomy
May 28, 2015
1
161
As part of an observing program carried out with the Subaru Telescope and the Hubble Space Telescope, a group of researchers from the Service d'Astrophysique- Laboratoire AIM of CEA-IRFU led by Anita Zanella discovered the ...
Astronomy
May 15, 2015
2
73
Astronomers have discovered that a distant galaxy—seen from Earth with the aid of a gravitational lens—appears like a cosmic ring, thanks to the highest resolution images ever taken with the Atacama Large Millimeter/submillimeter ...
Astronomy
Apr 7, 2015
59
4220
By combining observations of the distant Universe made with ESA's Herschel andPlanck space observatories, cosmologists have discovered what could be the precursors of the vast clusters of galaxies that we see today.
Astronomy
Mar 30, 2015
1
1007
The first galaxies were formed some 13.3 billion years ago, mainly composed of hydrogen and helium, the primary elements that emerged from the Big Bang. Their study to date has been technically very challenging due to their ...
Astronomy
Mar 24, 2015
1
43
One of the biggest mysteries in galaxy evolution is the fate of the compact massive galaxies that roamed the early Universe.
Astronomy
Feb 27, 2015
4
2084
