Terahertz wireless links to spaceborne satellites could make gigabit-per-second connection speeds available to anyone anytime, anywhere on the face of the earth, on the ground or in flight.

A Terahertz (THz) transmitter capable of transmitting digital data at a rate >100 gigabits (= 0.1 terabit) per second over a single channel using the 300-GHz band has been developed. This technology enables data rates 10X or more, faster than that offered by the fifth-generation mobile networks (5G), expected to appear around 2020. The THz band is a new and vast frequency resource expected to be used for future ultrahigh-speed wireless communications.

The research group has developed a transmitter that achieves a communication speed of 10Gb/s using the frequency range from 290 – 315 GHz...

The Sun by the Atmospheric Imaging Assembly of NASA’s Solar Dynamics Observatory. Credit: NASA

A team with the University of Hawaii, Ponta Grossa State University in Brazil and Stanford University has found what they believe is the reason that the surface of the sun rotates more slowly than its core. They used a new technique to measure the speed of the sun’s rotation at different depths and what it revealed about the speed of the sun’s outer 70km deep skin. Scientists have known that the surface of the sun spins more slowly than its interior but have no good explanation for it. In this new effort, the researchers were able to take a better look at what was occurring and by doing so discovered what they believe is the source of the slowdown.

To gain a better understanding of what is happen...

1. An extremely massive elliptical galaxy at about three billion years after the big bang, as seen in an optical/near-infrared image. The galaxy is about ten times more massive than the Milky Way. Today the galaxy is not actively producing new stars, but its population of old, red stars appears to be the result of earlier episodes during which the galaxy was one of the most active star-forming examples known. Credit: NASA/Hubble
2. Age and abundance patterns of COSMOS-11494 in comparison to lower-redshift quiescent galaxies.

Galaxies today fall roughly into 2 categories: elliptically-shaped collections of reddish, old stars that formed predominantly during a period early in the history of the universe, and spiral shaped objects dominated by blue, young stars...

Loss of IL-27 signaling results in increased disease severity and lung immunopathology after SeV.

Respiratory syncytial virus (RSV) causes ~60,000 hospitalizations of children aged 0 to four, and nearly 200,000 hospitalizations and 14,000 deaths among adults 65 and older. However, there are virtually no vaccines or treatments for these infections. Perelman School of Medicine at the University of Pennsylvania and the University of Pennsylvania School of Veterinary Medicine found evidence that cytokine Interleukin 27 (IL-27), may be the key to fighting and treating these infections.

Working with a mouse-model of parainfluenza virus infection, Sendai virus, which causes similar symptoms and patterns of tissue damage to RSV, researchers found that mice fared much worse in fighting the infectio...