redshift of galaxies
Why Was it Tricky to Know the Distances to Galaxies JWST Was Seeing?
One of the chief objectives of the James Webb Space Telescope (JWST) is to study the formation and evolution of…
A New Way to Measure the Expansion Rate of the Universe: Redshift Drift
Almost all the galaxies in the Universe are speeding away from us because of the Big Bang and the acceleration…
JWST Shows How the Early Universe Was Furiously Forming Stars
We can gaze out into regions in our neighbourhood of the Milky Way and find orgies of star birth. The…
Remember Those Impossibly Massive Galaxies? They May Be Even More Massive
A new analysis of those James Webb images showed that the galaxies it observed (deemed "too massive") could be even…
JWST Sees a Galaxy Cluster Coming Together in the Early Universe
One of the James Webb Space Telescope’s science goals is to help cosmologists understand how the first galaxies and galaxy…
For the First Time, Astronomers Spot Stars in Galaxies that Existed Just 1 Billion Years After the Big Bang
Using data from the JWST, an international team of astronomers have made the first observations of stars in quasars that…
Astronomers set a new Record and Find the Farthest Galaxy. Its Light Took 13.4 Billion Years to Reach us
Since time immemorial, philosophers and scholars have contemplated the beginning of time and even tried to determine when all things…
How Big is the Universe?
The Universe is big, but how big is it? That all depends on whether the Universe is finite or infinite.…