01/06/2017

Physicists add amplifier to quantum communication toolbox

Quantum encryption using single photons is a promising technique for boosting the security of communication systems and data networks, but there are challenges in applying the method over large distances due to transmission ...

Volcanoes as referees for life on Earth

At the Triassic-Jurassic boundary, 200 million years ago, some 60 percent of species living on Earth disappeared. Scientists suspected that magmatic activity and the release of CO2 were responsible for this environmental ...

Early black holes may have grown in fits and spurts

A long-standing question in astrophysics is: how and when did supermassive black holes appear and grow in the early universe? New research using NASA's Chandra X-ray Observatory and the Sloan Digital Sky Survey (SDSS) suggests ...

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