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Large and small galaxies may grow in ways more similar than expected

A team of astronomers has obtained detailed images of a small galaxy and its surroundings, revealing features typically associated with larger galaxies. The study found that the mechanisms fueling galaxy growth may be more universal than previously thought, suggesting that even dwarf galaxies can build stellar halos through accretion.

SourceUniversity of Arizona·JournalThe Astrophysical Journal·TypeObservational study·DateJan 16, 2025

Orbital angular momentum boosts multiplexed holography

Researchers have implemented Orbital Angular Momentum (OAM) as an independent information carrier for optical holography, leading to OAM multiplexed holography. The new design approach, MHC-OAM, uses spatial light modulators to achieve multiramp helical conical beams with different parameters serving as information encryption or decryp...

SourceSPIE--International Society for Optics and Photonics·JournalAdvanced Photonics Nexus·DateJul 5, 2023

Modeling Ocean Floor Spreading In Tub Of Wax

Researchers created a wax experiment that replicates ocean floor spreading, allowing them to study millions of years of geological time. The experiments revealed the formation of microplates, tiny chunks of solid wax that roll up and rotate in a spiral shape, mirroring the Earth's natural phenomenon.