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  • Dark Energy Survey uncovers clues to universe’s complexity

    The decade-long effort reveals findings consistent with standard cosmological models, but open to more complex interpretations.
    The image is a composite of Kepler's supernova remnant, showing a spherical cloud of debris in purple and pink X-ray wavelengths with a blue optical edge, set against a starry black space background.
    The image here depicts Kepler’s supernova remnant, captured through a blend of X-ray and optical wavelengths. This remnant originates from a Type Ia supernova, a type of supernova that serves as a tool for measuring distances on a cosmic scale.
    (Image: Courtesy of NASA/CXC/SAO/D. PATNAUDE; (OPTICAL) DSS)

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  • A world shaped by water and access
    Three people test water below a sand dam.

    Griffin Pitt, right, works with two other student researchers to test the conductivity, total dissolved solids, salinity, and temperature of water below a sand dam in Kenya.

    (Image: Courtesy of Griffin Pitt)

    A world shaped by water and access

    Griffin Pitt’s upbringing made her passionate about water access and pollution, and Penn has given her the opportunity to explore these issues back home in North Carolina and abroad.

    Oct 8, 2025