Gravitational Lensing
New Einstein's Cross discovery reveals giant dark matter halo
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Astronomers using the Hubble Space Telescope have discovered a new Einstein's Cross, a gravitational lensing phenomenon that exposes a massive dark matter halo surrounding a distant galaxy. This rare quadruple image of a quasar offers fresh evidence on dark matter's extent. The research, led by scientists from Spain's Instituto de Astrofísica de Canarias, appears in Nature Astronomy.
Quantum-inspired algorithm reveals hidden cosmic objects
Researchers have developed a quantum-inspired protocol to measure the masses of small cosmic objects that subtly bend light through microlensing. This approach leverages the quantum properties of photons to extract precise information from faint signals. It could detect elusive entities like rogue planets and isolated black holes without needing massive telescopes.