• Aurorae discovered on all four major moons of Jupiter

    A team of astronomers using the W. M. Keck Observatory in Hawaii has discovered that aurorae at visible lengths appear on all four of Jupiter’s major moons, namely Io, Europa, Ganymede, and Callisto. The discovery was made using the High-Resolution Echelle Spectrometer (HIRES) at the Keck Observatory, as well as other high-resolution spectrographs at the Large Binocular Telescope and Apache Point Observatory.

  • Suspected meteorite impact investigated in Texas

    Authorities are investigating a possible meteorite impact in the city of Mission, south Texas, after numerous residents in the area reported an explosion that shook their homes on February 15, 2023. Our analysis points to a meteor exploding over south Texas, with some pieces surviving the atmospheric entry.

  • Study provides the darkest and deepest view of interstellar ices

    An international team of scientists have used the James Webb Space Telescope (JWST) to study ices in interstellar clouds, providing new insights into the chemical processes of one of the coldest, darkest places in the universe. The study, published in Nature Astronomy, found that these ices are formed from the earliest moments of the universe and contain biogenic elements that are important for life.

  • Asteroid 2023 AV flew past Earth at just 0.04 LD on January 12

    A newly-discovered asteroid designated 2023 AV flew past Earth at a distance of just 0.04 LD / 0.00010 AU (15 551 km / 9 663 miles) from the center of our planet at 20:09 UTC on January 12, 2023. That’s approximately 9 180 km (5 704 miles) from the surface.