Astronomers have been confounded by recent evidence that the universe expanded at different rates throughout its life. New ...

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

The new composite image, which combines hundreds of photos from the Hubble Space Telescope, shows the Andromeda Galaxy with more than 200 million individually resolved stars.

A unique dataset of Type Ia supernovae being released today could change how cosmologists measure the expansion history of ...

Early data of “little red dots,” or LRDs, from the James Webb Space Telescope (JWST) appeared to suggest the presence of galaxies too massive to exist in our modern cosmological models.

Contemplating those fateful events—and what happened next—Guth says, raises some of the most fascinating questions in science: How did our universe begin, where is it going, and what caused it ...

Astrophysics professor Wendy Freedman discussed her career and award-winning research on the Hubble constant.

Over the past decade, cosmology has been embroiled in a growing crisis. Fuelling it are observations, first made by the Hubble Space Telescope and later by the James Webb Space Telescope ...

A unique dataset of Type Ia Supernovae being released today could change how cosmologists measure the expansion history of the Universe.

The ZTF cosmology science working group is today publishing twenty-one articles studying these 3628 Type Ia Supernovae, forming a Special Issue in Astronomy & Astrophysics. https://www.aanda.org ...