An international team of astronomers, including one from the University of Cape Town (UCT), has spotted a very rare sight in the early Universe: a galaxy that appears as an “Einstein Cross” – four ...

We’ve grown up with the idea that the universe will expand forever, meaning that something called the “cosmological constant” is positive. Space keeps stretching, galaxies drift farther apart, and ...

On the night of Oct. 5 to 6, 1923, Edwin Hubble discovered a new star — and revealed the utter vastness of the universe. Hubble was looking at the cosmos with the 100-inch Hooker telescope at the ...

The following games are classics in their own right, and well worth playing on their merits, but I'd stop short of calling them science fiction. The Borderlands series has big personalities, big guns, ...

Galaxies "blazing with technosignatures" could suggest the existence of a "large number" of "different metasocieties." The Fermi Paradox, first devised by physicist Enrico Fermi in the 1950s, asks why ...

The James Webb Space Telescope (JWST) continues to deliver awe-inspiring views of the cosmos and the art world has taken notice. Digital artist Ashley Zelinskie took that inspiration to the next level ...

Artist’s impression of the powerful winds blowing from the bright X-ray source GX13+1. The X-rays are coming from a disc of hot matter, known as an accretion disc, that is gradually spiralling down to ...

The James Webb Space Telescope's latest image shows eight spectacular examples of gravitational lensing, a phenomenon that Albert Einstein first predicted some 100 years ago.

But a new study suggests that neither dark matter nor dark energy may actually exist. Instead, what scientists see as these mysterious forces could simply be an illusion, created by the slow weakening ...

Exoplanet hunters Christopher Watson and Annelies Mortier explain the long search for a 'twin Earth' capable of sustaining life.