Cosmological redshift depends upon a galaxy's distance. Credit: NASA/JPL-Caltech/R. Hurt (Caltech-IPAC) In 1929 Edwin Hubble published the first solid evidence that the universe is expanding. Drawing ...

The standard cosmological model (present-day version of "Big Bang," called Lambda-CDM) gives an age of the universe close to ...

RECENT spectral surveys of discrete radio sources have not revealed any significant dependence of spectral index on apparent intensity 1–3. It is therefore of interest to determine the way in which ...

Scientists know very little about the mysterious force dubbed “Dark Energy” that seems to be quickening the expansion of the universe but, according to LSU Physics and Astronomy Associate Professor ...