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The tally counts up the stray photons roaming through space THROUGH THE DARKNESS Gamma rays bursting from distant galaxies, like the one shown in the center of this artist’s illustration, can illuminate the diffuse light, called extragalactic background light, that manages escape its dusty environs. Aurore Simonnet/Swift/NASA Share this: This article is only available to […] More
The circumgalactic medium has been hard to observe, but new tools now make it possible. COSMIC CLOAK Whirls of cold and hot gas billow in this simulation of a circumgalactic medium surrounding a galaxy. With new tools and simulations, researchers have learned that the CGM helps a galaxy recycle its materials. M.S. Peeples et al/FOGGIE […] More
The planet’s heat distribution explains why lightning doesn’t strike near the equator IN A FLASH Unlike Earth lightning, which is most concentrated at the equator, Jupiter’s strikes at its poles, as shown in this artist’s rendition. SwRI, JPL-Caltech/NASA, JUNOCAM Share this: This article is only available to Science News subscribers. Subscribers, enter your e-mail address to […] More
