This week on the GeekWire radio show and podcast: A new invention aims to keep packages from getting stolen from porches, Expedia unveils its Seattle campus designs, Jenn Risko of book...
Amazon CEO Jeff Bezos gave...
Fast radio bursts are millisecond-duration astronomical radio pulses of unknown physical origin that appear to come from extragalactic distances. Previous follow-up observations have failed to find additional bursts at the same dispersion measure (that is, the integrated column density of free electrons between source and telescope) and sky position as the original detections. The apparent non-repeating nature of these bursts has led to the...
Cosmic rays are the highest-energy particles found in nature. Measurements of the mass composition of cosmic rays with energies of 1017–1018 electronvolts are essential to understanding whether they have galactic or extragalactic sources. It has also been proposed that the astrophysical neutrino signal comes from accelerators capable of producing cosmic rays of these energies. Cosmic rays initiate air showers—cascades of secondary particles in the...
This week on the GeekWire radio show, we’re featuring highlights from GeekWire’s new weekly podcast, Generation App, with reporter and digital producer Monica Nickelsburg, the host of the show. To subscribe and get more episodes, go to geekwire.com/generationapp,...
Fast radio bursts are millisecond-duration astronomical radio pulses of unknown physical origin that appear to come from extragalactic distances. Previous follow-up observations have failed to find additional bursts at the same dispersion measure (that is, the integrated column density of free electrons between source and telescope) and sky position as the original detections. The apparent non-repeating nature of these bursts has led to the...
In recent years, millisecond-duration radio signals originating in distant galaxies appear to have been discovered in the so-called fast radio bursts. These signals are dispersed according to a precise physical law and this dispersion is a key observable quantity, which, in tandem with a redshift measurement, can be used for fundamental physical investigations. Every fast radio burst has a dispersion measurement, but none before...
Our understanding of fast radio bursts — intense pulses of radio waves — and their use as cosmic probes promises to be transformed now that one burst has been associated with a galaxy of known distance from Earth. See Letter p.453
Nature 530 427 doi: 10.1038/530427a
In three years, everyone will be wearing virtual reality goggles and watching drone racing, wearing virtual makeup and commuting to work in a self-driving car. This was...
