Early data of “little red dots,” or LRDs, from the James Webb Space Telescope (JWST) appeared to suggest the presence of ...

This is called the red shift. Light wavelengths from an object emitting light are compressed by movement towards the observer. This is called the blue shift. Edwin Hubble was an American ...

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

Computer algorithms can model the universe, matching simulations to observations and revealing the distribution of dark ...

Could time itself actually explain our universe's expansion? Our current cosmological model—known as lambda cold dark matter, ...

Astronomers may have "saved cosmology" by gathering the largest sample yet of some of the most ancient ... Little red dot ...

The most distant galaxies observed appear to depart from this law, a fact of deep meaning for cosmology ...

A full evaluation of the ability of those galaxies to "break" cosmology would have to wait for a more precise measurement of their redshift, and hence their age. When those more precise ...

My research interests include observational cosmology, galaxy evolution and active galactic nuclei. Current programs include multi-wavelength observations of high redshift galaxy clusters to measure ...