The James Webb Space Telescope (JWST) is the largest and most powerful space telescope built to date. Since it was launched in December 2021 it has provided groundbreaking insights. These include ...

An international team led by the University of Geneva (UNIGE) has identified three ultra-massive galaxies—nearly as massive as the Milky Way—already in place within the first billion years after the ...

Astronomers have used the ages of more than 155,000 stars in the Milky Way to independently estimate the age of the universe, ...

Using the James Webb Space Telescope, astronomers have created the most detailed map of the cosmic web ever.

Among the most fundamental questions in astronomy is: How did the first stars and galaxies form? NASA’s James Webb Space Telescope is already providing new insights into this question. One of the ...

Look at this new radio image covered with dots, each of which is a distant galaxy! The brightest spots are galaxies that are powered by supermassive black holes and shine bright in radio light. But ...

What was the universe like in the first few hundreds of millions of years after it came into existence? How did the first stars and galaxies form? Those are questions that astronomers now have a ...

Kasper E. Heintz, Darach Watson, Gabriel Brammer & Simone Vejlgaard from the Cosmic Dawn Center, Niels Bohr Institute, University of Copenhagen. Using the James Webb Space Telescope, University of ...

A study based on 47 million galaxies found that the cosmic web retains patterns on enormous scales, which could force a reevaluation of a pillar of cosmology.