Supernova archaeology: Finding clues in the ruins of an ancient dead star with Chandra People often think about archaeology happening deep in jungles or inside ancient pyramids. However, a team of astronomers has shown that they can use stars and the remains they leave behind to conduct a special kind of archaeology in space.
https://phys.org/news/2025-03-....supernova-archaeolog

Small star, mighty flares: ALMA shares new view of Proxima Centauri At a distance of just over four light years, Proxima Centauri is our nearest stellar neighbor and is known to be a very active M dwarf star. Its flare activity has been well-known to astronomers using visible wavelengths of light, but a new study using observations with the Atacama Large Millimeter/submillimeter Array (ALMA) array highlights this star's extreme activity in radio and millimeter wavelengths, offering exciting insights about the particle nature of these flares as well as potential impacts to the livability of its terrestrial, habitable-zone planets.
https://phys.org/news/2025-03-....small-star-mighty-fl

Video: Watch wind whirl from the sun Aside from sunlight, the sun sends out a gusty stream of particles called the solar wind. The ESA-led Solar Orbiter mission is the first to capture on camera this wind flying out from the sun in a twisting, whirling motion. The solar wind particles spiral outward as if caught in a cyclone that extends millions of kilometers from the sun.
https://phys.org/news/2025-03-video-sun.html

Webb telescope directly observes exoplanet CO₂ for first time The James Webb Space Telescope has directly observed the key chemical of carbon dioxide in planets outside of our solar system for the first time, scientists announced Monday.
https://phys.org/news/2025-03-....webb-telescope-exopl

New DESI results strengthen hints that dark energy may evolve The Dark Energy Spectroscopic Instrument used millions of galaxies and quasars to build the largest 3D map of our universe to date. Combining their data with other experiments shows signs that the impact of dark energy may be weakening over time -- and the standard model of how the universe works may need an update.
https://www.sciencedaily.com/r....eleases/2025/03/2503