The universe's expansion can cause distant galaxies to recede faster than light, a phenomenon that does not violate Einstein's theory of relativity because it involves the stretching of space itself, not the movement of objects through space.
A theoretical study suggests that dying stars might create new universes powered by dark energy, forming gravastars instead of black holes.
A new model, the Cosmological Hart-Tipler Conjecture, suggests advanced extraterrestrial life is extremely rare, incorporating cosmic expansion into the analysis.
A new philosophical analysis challenges the "block universe" model of spacetime, suggesting that a fundamental misunderstanding of existence versus occurrence has led to confusion in modern physics.
Astronomers have captured the clearest direct image of a cosmic web filament, revealing a three-million-light-year strand connecting two ancient galaxies.
A new survey of physicists reveals a lack of consensus on fundamental questions in cosmology, including the Standard Model and the nature of dark matter.
University students built a dark matter detector to search for axions, establishing new experimental limits and demonstrating the value of small-scale research.
New research on ultra-faint dwarf galaxies suggests they hold crucial information about the early universe's conditions and star formation.