Astronomers have identified the most powerful and distant microwave laser, or maser, ever observed, originating from two colliding galaxies nearly 8 billion light-years from Earth. The signal, ...

Dark energy is one of those cosmological features that we are still learning about. While we can't see it directly, we can most famously observe its effects on the universe—primarily how it is causing ...

Abstract: In this study, the background updating (BU)-based contrast-source inversion (CSI) scheme (BU–CSI) is proposed to facilitate high-accuracy quantitative breast-cancer imaging, especially in ...

The standard cosmological model assumes that the Universe is uniform and looks the same in all directions when viewed on large scales. New research directly tests that assumption and finds evidence ...

Levon Pogosian receives funding from the Natural Sciences and Engineering Research Council of Canada. The work described in this article was enabled in part by support provided by the BC DRI Group and ...

Neutrino particles have extremely small masses, yet there are so many of them that they carve out the large-scale structure of the entire universe. Scientists are getting close to figuring out how.

Abstract: One of the main challenges in medical microwave imaging is to provide meaningful images when only minimal a priori information is available. Concerning the case of brain stroke imaging, this ...