What they lack in visual splendour, a number of fainter stars more than make up for in cosmic importance, Nigel Henbest writes ...

What could we choose as the seven most remarkable celestial objects visible either with our eyes or with a small telescope?

In the other, published in early July, Profumo proposes that dark matter particles could have formed at the boundary of the cosmic horizon – the edge of the observable Universe – during the ...

It might be lurking in a dark mirror universe contained within the visible universe. The merging of dark matter black holes in that realm may cause gravitational waves which can be detected.

However, the visible universe today is 93 billion light-years across, with Earth at its center (the concept of a "visible" universe is very observer dependent — observers in different parts of ...

Let’s start with the number of galaxies in the visible universe. The volume we are considering spans 93 billion light-years across.

Astronomer Vera Rubin, now honored on a U.S. quarter, transformed our understanding of the universe by uncovering powerful evidence of dark matter. Her groundbreaking work revealed that most of ...

The James Webb Space Telescope has found perhaps its most profound discovery to date. The uncovered preferred direction for galaxies supports the idea that the universe was born in a black hole.

Since conventional explanations have failed to pony up dark matter, one physicist is looking towards the unconventional.

It might be lurking in a dark mirror universe contained within the visible universe. The merging of dark matter black holes ...

It might be lurking in a dark mirror universe contained within the visible universe. The merging of dark matter black holes in that realm may cause gravitational waves which can be detected.