They show up as a mathematical solution in general relativity, basically as a time-reversed version of a black hole. Some ...

Using the James Webb Space Telescope, astronomers have investigated 70 dusty galaxies at the very edge of the universe that challenge our understanding of cosmic evolution.

Space is full of surprises, and in 2025, astronomers witnessed one of the most extraordinary events ever registered: a gamma-ray burst (GRB) that lasted seven ...

For the last 25 years, most scientists have believed that about 70% of the universe is formed by something called ‘’dark ...

A team of researchers using the James Webb Space Telescope has produced the most detailed map of dark matter to date.

The shape of the cosmos depends on a balance of two competing forces: the pull of gravity and the expansion driven by dark ...

The Hubble and Chandra space telescopes are hunting for rogue black holes wandering through dwarf galaxies, which could ...

Two ways of measuring how fast the universe is expanding disagree, a puzzle known as the Hubble tension. Tiny magnetic fields ...

A physicist proposes that the universe is not empty space, but is a viscous fluid, fueling the expansion and contraction we see.

So cosmologists feel confident in modelling the universe using the “maximally symmetric” description of space-time in Einstein’s theory of general relativity. This symmetric vision for the universe, ...

A century ago, Edwin Hubble began the race to the edge of the cosmos Damond Benningfield In 1930, Albert Einstein met with astronomers (including Edwin Hubble, at Einstein's left, back row) at Mount ...