Redshift and blueshift are used by astronomers to work out how far an object is from Earth. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Morin, L.R.M. (2026) Conjecture on Cosmological Redshift: Action Instead of Velocity, No Need for Dark Energy. Journal of ...

Imagine the ultimate version of a toy Universe: it's expanding, it's full of material, and through it all, there's one photon ⁠— or quantum of light ⁠— that we keep track of and forbid from ...

eSpeaks’ Corey Noles talks with Rob Israch, President of Tipalti, about what it means to lead with Global-First Finance and how companies can build scalable, compliant operations in an increasingly ...

Over the past decade, the availability of a new generation of ground- and space-based instruments has transformed our understanding of early galaxies. Before this, observational studies of the ...

HOW can we make an accurate map of the universe when telescopes deliver only a two-dimensional picture? Measuring how far away cosmic objects are is no trivial affair – we can’t move our surveying ...