Most distant blazar is a high-energy astrophysics puzzle

(Phys.org) —Blazars are the brightest of active galactic nuclei, and many emit very high-energy gamma rays. New observations of the blazar known as PKS 1424+240 show that it is the most distant known source of very high-energy ...

Single photon from a quantum emitter? It's a matter of timing...

(Phys.org) —Many systems envisioned for practical quantum information processing require the use of single, indistinguishable photons as carriers of information and logic operators. So researchers in the field need to be ...

Fuel economy remains at all-time high

(Phys.org) —For the second month in a row, fuel economy of new vehicles sold in the United States remains at a record high, say researchers at the University of Michigan Transportation Research Institute.

Fuel economy now at all-time high

Fuel economy of new vehicles sold in the United States reached a record-high 24.5 mpg last month, say researchers at the University of Michigan Transportation Research Institute.

2012: A record year for fuel economy

(Phys.org)—Although fuel economy of all new vehicles sold in the United States dipped slightly last month, 2012 was the best year ever for fuel efficiency, say researchers at the University of Michigan Transportation Research ...

First 'bone' of the Milky Way identified

(Phys.org)—Our Milky Way is a spiral galaxy—a pinwheel-shaped collection of stars, gas and dust. It has a central bar and two major spiral arms that wrap around its disk. Since we view the Milky Way from the inside, its ...

New Earth at night images reveal global light pollution problem

NASA's new 'Black Marble' images of the nighttime Earth aren't so black. They reveal that our globe is heavily littered with excessive and wasteful lighting that produces light pollution – a bright glow over our cities ...

page 17 from 24