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Cosmologists have made the most sensitive and precise measurements yet of the polarization of the cosmic microwave background.
The report, published October 20 in the Astrophysical Journal, marks an ...
Cosmologists have made the most sensitive and precise measurements yet of the polarization of the cosmic microwave background.
The report, published October 20 in the Astrophysical Journal, marks an ...
An international team of astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) and the Karl G. Jansky Very Large Array (VLA) -- among other telescopes -- has obtained the best view...
Do we live in a 2-D hologram? New Fermilab experiment will test the nature of the universe（图）
nature of the universe 2-D hologram
2014/9/1
A unique experiment at the U.S. Department of Energy’s Fermi National Accelerator Laboratory called the Holometer has started collecting data that will answer some mind-bending questions about our uni...
Small but Plentiful: How the Faintest Galaxies Illuminated the Early Universe（图）
The universe Galaxy Astrophysics. The Milky Way. The big bang Ultraviolet The mass of the sun
2014/7/18
Light from tiny galaxies more than 13 billion years ago played a larger role than previously thought in creating the conditions in the universe as we know it today, according to a new study by researc...
Small, but plentiful: how the faintest galaxies illuminated the early universe（图）
Ultraviolet Stars Dwarf galaxies. The universe Astrophysics. Galaxy ionization
2014/7/18
Light from tiny galaxies over 13 billion years ago played a larger role than previously thought in creating the conditions in the universe as we know it today, a new study has found. Ultraviolet (UV) ...
Pasadena, CA— New work from a team of scientists including Carnegie’s Josh Simon analyzed the chemical elements in the faintest known galaxy, called Segue 1, and determined that it is effectively a fo...
Boss quasars track the expanding universe: The most precise measurement yet
Boss quasars track expanding universe The most precise measurement yet
2014/4/16
The Baryon Oscillation Spectroscopic Survey (BOSS), the largest component of the third Sloan Digital Sky Survey (SDSS-III), pioneered the use of quasars to map density variations in intergalactic gas ...
First detailed look at a normal galaxy in the very early universe（图）
a normal galaxy early universe
2014/3/17
University of Hawaii at Manoa astronomer Regina Jorgenson has obtained the first image that shows the structure of a normal galaxy in the early universe. The results were presented at the winter Ameri...
Cambridge, MA -
Researchers from the Baryon Oscillation Spectroscopic Survey (BOSS) today announced that they have measured the distance to galaxies more than six billion light years away to an unpre...
宇宙尘埃的生命周期:观察,理论,实验研讨会（The Life Cycle of Dust in the Universe: Observations, Theory, and Laboratory Experiments）（图）
宇宙尘埃 生命周期:观察,理论,实验 研讨会
2013/11/1
This meeting aims to address the life cycle of dust in the Universe, which covers the formation, evolution and destruction of dust in a range of environments, ranging from the smallest to the largest ...
An Anomaly in the Angular Distribution of Quasar Magnitudes: Evidence for a Bubble Universe with a Mass ~10^21 M\odot
Anomaly Angular Distribution Quasar Magnitudes Bubble Universe Mass
2012/2/21
Quasars provide our farthest-reaching view of the Universe. The Sloan Survey now contains over 100,000 quasar candidates. A careful look at the angular distribution of quasar magnitudes shows a surpri...
We explore the ultimate fate of the Universe by using a divergence-free parametrization for dark energy $w(z)=w_0+w_a({\ln (2+z)\over 1+z}-\ln2)$. Unlike the CPL parametrization, this parametrization ...
Pre-big bang collapsing universe from modern Kaluza-Klein theory of gravity
Pre-big bang collapsing universe modern Kaluza-Klein theory gravity
2011/10/18
We study the collapse of the universe described by a scalar field spherically symmetric collapse of a system described by a massless scalar field from a 5D Riemann-flat canonical metric, on which we m...
A possible way to identify the fingerprint of the universe
large scale structure of the universe map of the universe topology of the universe redshift space distribution of galaxies galaxies evolution
2011/9/26
There is a phenomenon that the inverse image of a given celestial object could in principle be seen in negative directions in a closed universe which there is no horizon problem, but it is difficult t...