Astronomers working with the James Webb Space Telescope report that a massive galaxy from the early universe shows no sign of ...

Astronomers have identified one of the most distant candidate galaxies known to leak ionizing radiation—the same kind of ...

Probing the dawn of the cosmos for clues to how the first galaxies and supermassive black holes formed is no easy feat ...

Imagine standing in the emptiest place the universe has to offer, a stretch of cosmic ocean so vast that light takes tens of ...

The standard cosmological model (present-day version of "Big Bang," called Lambda-CDM) gives an age of the universe close to 13.8 billion years and much younger when we explore the universe at ...

Astronomers using the James Webb Space Telescope have spotted something that shouldn’t exist—at least not so early in the universe. A massive galaxy, formed less than 2 billion years after the Big ...

Whether or not galaxies merge depends on how strong the gravitational attraction is between the galaxies and whether the universe’s expansion is more powerful than gravity. Gravity affects everything ...

Astronomers have created the largest and most detailed 3D map yet of a glowing signal from the early universe, revealing hidden galaxies and gas from 9-11 billion years ago. By analyzing faint ...

The panel on the left shows the so-called cosmic web, where the colour encodes the projected density of gas and stars. The two panels on the right zoom into two of the many galaxies formed in the ...

Most messages are press releases about astronomical discoveries—okay, scratch that; most of them are spam, but science announcements are an easy second place. But I also get questions from readers ...