SANTA BARBARA, Calif. — It’s one of the most talked-about issues in physics: Two measurements of the universe’s expansion rate disagree. Now, a technique that aimed to resolve the mismatch has produced a third estimate that falls between the previous two. So the controversy endures, scientists report in a study accepted in the Astrophysical Journal. […] More
A geophysicist looks at the science, history and culture of the versatile element ALL ABOUT CARBON Diamond, graphite and calcite (crystals shown) are just three of the hundreds of carbon-bearing minerals found on Earth. Rob Lavinsky and iRocks.com/Wikimedia Commons (CC BY-SA 3.0) Share this: This article is only available to Science News subscribers. Subscribers, enter […] More
The finding suggests large structures in the cosmic web are magnetized MAGNETIC CONNECTION Two distant galaxy clusters, Abell 0399 (left) and Abell 0401 (right), are connected by magnetic fields containing high-energy electrons. X-rays from the cluster cores are shown in purple, and radio emission from the magnetic bridge forms the blue-toned smear in between. DSS, […] More
Lab experiments characterize a phenomenon predicted by cosmologist Stephen Hawking NOT BLACK Stephen Hawking first proposed that black holes (illustrated) aren’t fully black, but emit a faint haze of particles that came to be known as Hawking radiation. Now scientists have measured the radiation’s temperature in a lab analog of a black hole. NASA’s Goddard […] More
LHC data suggests the subatomic particle’s constituent quarks and gluons share weird links TIED UP Protons contain smaller particles called quarks and gluons (illustrated). Experimental data suggest that quantum entanglement links those particles with one another. scify/Shutterstock Share this: This article is only available to Science News subscribers. Subscribers, enter your e-mail address to access […] More
A variation of the classic double-slit experiment is applied to a positron for the first time MAKING WAVES The famous double-slit experiment (illustrated) has revealed that particles of matter, like electrons, are also waves. Now, researchers have performed a similar experiment to demonstrate antimatter’s wavelike behavior. RUSSELL KIGHTLEY/Science Source Share this: This article is only […] More
Subatomic particles born in the universe’s first second may imprint their effects on the sky RUN IN CIRCLES Galaxies in the universe tend to cluster into rings (illustrated), and scientists have found signs that subatomic particles called neutrinos change the way matter is distributed in the circles. Zosia Rostomian/Lawrence Berkeley National Laboratory Share this: This […] More
The burst of light from far away may have been a new type of supernova GLOBAL OBSERVATIONS An odd stellar flare called the “Cow” was observed by telescopes around the world, including the Australia Telescope Compact Array (shown) near Narrabri, Australia. Alex Cherney, CSIRO Share this: This article is only available to Science News subscribers. […] More
