Early 20th-century cosmology transitioned from galactic astronomy with Edwin Hubble's discovery of external galaxies and the universe's expansion, which Albert Einstein's general relativity later ...

In this video, Arvin Ash explores the history of the universe from the Big Bang to modern cosmology. Key discoveries include: ...

Here is a look at just a few of the biggest developments in astronomy that The Debrief has been tracking in 2025.

The study of symmetries in black hole spacetimes has emerged as a cornerstone for comprehending the underlying dynamics of these enigmatic compact objects. By identifying both explicit and hidden ...

In this series I give you an overview of important ideas in the area of cosmology. This video is the second in the series, and focuses on dark matter. Using various detectors and research methods, ...

A new study questions dark energy's role in the universe's acceleration, suggesting it may be weakening instead.

Originally published in England under the title The Fontana history of astronomy and cosmology. Statement of responsibility from jacket. Prehistory -- Ancient Egypt -- Mesopotamia -- The Greek and ...

While headlines around the world claimed that ancient galaxies discovered by the James Webb Space Telescope were "breaking" our understanding of the Big Bang, the truth is much more nuanced — and much ...

Brian Cox explains why cosmology can feel truly terrifying 🌌. From the vastness of the universe to humanity’s tiny place ...

The Committee on Astronomy and Astrophysics (CAA) provides an independent, authoritative forum for identifying and discussing issues in astronomy and astrophysics with the research community, the ...