Cosmic voids, once seen as empty spaces between galaxies, are gaining attention as potential keys to understanding dark energy and dark matter.
Space contains vast regions mostly free of matter known as cosmic voids. These areas sit between dense threads that form the cosmic web.
Astronomers using NASA’s James Webb Space Telescope have produced the most detailed map yet of the universe’s cosmic web, the vast network of dark matter and gas that links galaxies. The map traces structures back to when the universe was roughly one billion years old.
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Active galactic nuclei could be sites of massive planet formation, according to new models. Researchers suggest millions of worlds, some unusually large, may arise in the dusty discs surrounding supermassive black holes.
A recent challenge to the existence of dark energy has been resolved, with astronomers confirming that the universe continues to expand at an accelerating rate. Researchers at the University of Southampton reexamined supernova data and found no flaws in the standard measurements.
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Scientists at Brown University have proposed a topological explanation for why the cosmological constant remains small despite predictions from quantum field theory. The study connects quantum gravity to the quantum Hall effect. It was published recently in Physical Review Letters.