listen to this article Estimated 3 minutes The audio version of this article is generated by AI-based technology. Mispronunciations may occur. We work with our partners to continually review and improve our results. The Ottawa River is expected to stop rising for the time being in the Ottawa-Gatineau region by the middle of this week, … Read more
Planets orbiting two stars were expected to be everywhere. Instead, astronomers have discovered only a few, according to a new study. Einstein’s general theory of relativity We may be quietly wiping out many of them. For years, this gap has puzzled scientists. The numbers simply didn’t add up, as binary stars are common in galaxies … Read more
hubble tensionA stubborn contradiction between two methods of measuring the rate of expansion of the universe has long plagued modern physics. Some scientists had hoped that it would eventually resolve itself to measurement error. New findings suggest otherwise. To understand what’s at stake, we need to step back a little. In the 1920s, astronomer Edwin … Read more