high redshift

Almost a Third of Early Galaxies Were Already Spirals

In the years before the JWST's launch, astronomers' efforts to understand the early Universe were stymied by a stubborn obstacle:…

1 month ago

The JWST is Re-Writing Astronomy Textbooks

When the James Webb Space Telescope was launched at the end of 2021, we expected stunning images and illuminating scientific…

1 month ago

Can Webb Find the First Stars in the Universe?

The Universe's very first stars had an important job. They formed from the primordial elements created by the Big Bang,…

7 months ago

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…

7 months ago

“The Universe Breakers”: Six Galaxies That are Too Big, Too Early

In the first data taken last summer with the Near Infrared Camera (NIRCam) on the new James Webb Space Telescope,…

1 year ago

The James Webb Links Modern Green Pea Galaxies to Ancient Galaxies in the Cosmic Dawn

When the James Webb Space Telescope lifted off from Earth on Christmas Day in 2021, it carried a lot of…

2 years ago

Wandering Stars Have Been Adrift Between Galaxies for Billions of Years

A new study using Hubble data has revealed that "wandering stars" that inhabit galaxy clusters have been there for billions…

2 years ago