Photometric redshift estimation has become an indispensable tool for mapping the large-scale structure of the Universe in modern imaging surveys. By inferring galaxy distances from multiband ...

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 ...

According to physics, the universe and everything in it can be explained by just a handful of equations. They’re difficult equations, all right, but their simplest feature is also the most mysterious ...

Doing away with complex calculations? (CC-BY-2.0/Boaz Arad) The next time you need to quickly convert the redshift of some distant cosmic object to parsecs or kilometres, and find that your laptop and ...

The long-standing problem of the cosmological constant, described both as “the worst prediction in the history of physics” and by Einstein as his “biggest blunder”, is being tackled with renewed ...

More than 90 years ago, astronomer Edwin Hubble observed the first hint of the rate at which the universe expands, called the Hubble constant. More than 90 years ago, astronomer Edwin Hubble observed ...