Wednesday, July 23, 2014
- Density, temperature, and CII projections along the y-axis at a scale of 1 pc, for three different metallicities. (Credit: University of Göttingen)
An “air waveguide” has been used to enhance light signals collected from distant sources. A single waveguide could be used to send out a laser and collect a signal. (Credit: Howard Milchberg)
This image shows the stunning elliptical galaxy Centaurus A. Recently, astronomers have used the NASA/ESA Hubble Space Telescope to probe the outskirts of this galaxy to learn more about its dim halo of stars. (Credit: ESA/Hubble)/NASA/Digitized Sky Survey/MPG/ESO
Physicists long assumed a proton’s spin came from its three constituent quarks. New measurements suggest particles called gluons make a significant contribution (Credit: Brookhaven National Laboratory)
These artist’s renderings show one model of pulsar J1023 before (top) and after (bottom) its radio beacon (green) vanished. Normally, the pulsar’s wind staves off the companion’s gas stream. When the stream surges, an accretion disk forms and gamma-ray particle jets (magenta) obscure the radio beam.
(Credit: NASA’s Goddard Space Flight Center)
The research group demonstrates that adding such massive neutrinos to the standard model does not really explain all datasets. (Credit: The Milky Way, NASA.)
The Super Cryogenic Dark Matter Search is an international, multimillion dollar dark matter experiment currently based in Minnesota with plans to progress the project by building a more sensitive detector at SNOLAB. (Credit: SNOLAB)
What is the view of time that Albert Einstein presents to us in special relativity? Einstein tells us that there is no separate ‘time’ or ‘space.’ ‘Time’ and ‘space’ cannot be separated; they are a united whole.