New research suggests that dark energy isn't needed to explain the acceleration in the expansion of the universe — instead ...

providing initial conditions for a specific scenario of how cosmic structure forms and evolves. The theory traces the origin and evolution of the precursor nebulae of a broad hierarchy of observed ...

The arrangement may be as challenging as it is beautiful, potentially posing a problem for our best model of cosmic evolution. The observed dwarf galaxies sit relatively close to Earth at just ...

The James Webb Space Telescope (JWST) has redefined humanity's capacity to study the cosmos. Its unprecedented sensitivity in ...

Diagram illustrating the merger scenario, where the merger of two gas rich spirals ... than ever before for morphological studies with high spatial resolution. The Cosmic Evolution Early Release ...

The present-day structure of the cosmic web tells us about that evolution, and it is closely ... quantities change in different cosmological scenarios. The final step will be to apply this ...

"Leo P provides a unique laboratory to explore the early evolution of a low-mass galaxy ... we study the stars that have survived over cosmic history and use their present-day properties to ...