How an interstellar comet sheds light on universe's 'cosmic noon'
An interstellar comet designated 3I/Atlas entered our solar system last year, providing astronomers with data about distant galaxies and cosmic origins. NASA's detailed observations confirmed it was a natural comet rather than an alien spacecraft and revealed information about its ancient extraterrestrial composition.
Read full story →Venus’s pale yellow clouds may hide something surprisingly dark
Scientists calculated that Venus's clouds' unidentified dark ultraviolet material absorbs light far more strongly than previously thought. This finding narrows possibilities for determining whether the mysterious substance is organic, inorganic, or something unexpected.
Scientists find water was fueling volcanoes 3 billion years ago
Water-rich crustal material sank into Earth's mantle more than three billion years ago through a process called "dripduction," fueling volcanic eruptions. Ancient rocks from Western Australia provided evidence that this water-delivery mechanism operated long before modern plate tectonics fully developed.
Scientists discover a hidden switch that shuts down inflammation
Scientists discovered a natural braking system that switches off inflammation and prevents harmful immune cell buildup. Boosting this pathway in people reduced inflammation-related immune changes and accelerated pain relief.