“Ever since Einstein proposed his special theory of relativity in 1905, physics and cosmology have been based on the assumption that space looks the same in all directions – that it’s not squeezed in one direction relative to another.

A new experiment by UC Berkeley physicists used partially entangled atoms — identical to the qubits in a quantum computer — to demonstrate more precisely than ever before that this is true, to one part in a billion billion.”

Read more at: https://newscenter.berkeley.edu/2015/01/28/quantum-computer-as-detector-shows-space-is-not-squeezed/

Read the paper at: http://arxiv.org/pdf/1412.2194.pdf — with Soumyajit Das Joy Das.10297751_742234565872467_1329994603334322321_n


Fascinating neighborhood

Image: Panoramic view of the entire near-infrared sky reveals the distribution of galaxies beyond the Milky Way. The image is derived from the 2MASS Extended Source Catalog (XSC)—more than 1.5 million galaxies, and the Point Source Catalog (PSC)–nearly 0.5 billion Milky Way stars. The galaxies are color coded by redshift (numbers in parentheses) obtained from the UGC, CfA, Tully NBGC, LCRS, 2dF, 6dFGS, and SDSS surveys (and from various observations compiled by the NASA Extragalactic Database), or photo-metrically deduced from the K band (2.2 μm). Blue/purple are the nearest sources (z < 0.01); green are at moderate distances (0.01 < z < 0.04) and red are the most distant sources that 2MASS resolves (0.04 < z < 0.1). The map is projected with an equal area Aitoff in the Galactic system (Milky Way at center).

Jupiter’s largest moons

In a rare occurrence, three of the Jupiter’s largest moons were caught parading across the face of the gas giant.

Although the planets orbit on a regular cycle, seeing three of them transiting at the same time occurs very infrequently, only once or twice a decade. In the images released today from NASA and the ESA, Europa, Callisto, and Io can be seen with their murky shadows trailing across the face of the planet. The bright bands of Jupiter’s cloud formations stand out against the darkness of the surrounding sky.


Jupiter's moon
Jupiter’s moon

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