Nicknamed the “Big Wheel,” a giant, spiral-shaped disk galaxy was spotted in an unusually crowded part of the early universe ...

"SPT2349-56 is a system so extraordinary that we may have caught one of the most massive clusters under formation at a very ...

The universe is vast and mysterious, with over 85% of its mass composed of an invisible substance known as dark matter.

In recent years, one of the most troubling puzzles in astrophysics has grown more urgent. Scientists have realized that the ...

Scientists discover ancient galaxy created early transparent bubbles, challenging cosmic timeline of universe formation.

QG-z7, a massive galaxy that stopped forming stars just 700 million years post-Big Bang—challenging everything we thought ...

For now, researchers think the light might be coming from the first stars to exist, or outflows from a supermassive black ...

It drives the movements of stars and galaxies, but dark matter is invisible. While it remains a colossal mystery, a study ...

The most distant and earliest "dead" massive galaxy ever seen shows some galaxies lived fast and died young shortly after the ...

The space telescope's image of a odd-looking spiral galaxy is, in reality, two distant galaxies overlapping each other.

Uncover the insights gained from the Webb telescope about early galaxies and their role in illuminating the universe.

A new analysis of astronomical data suggests unknown physics is at work assisting dark energy in acting almost as ...