The earliest galaxies are thought to have formed as the gravitational pull of dark matter, which has been impossible to study directly, slowly drew in enough hydrogen and helium to ignite stars ...

Decades ago, astronomers estimated that “ordinary” matter (basically everything that isn’t dark matter or dark energy) makes up 5% of the universe. There was just one problem—they had no idea where ...

How did the first galaxies after the Big Bang form and evolve? Were they small and attributed to dark matter or were they large and some other force attributed to their growth? This is what a recent ...

Matter and motion The local supercluster and anistrophy of the redshifts. The rotation of spiral galaxies. Dark halos around spiral galaxies. How much dark matter is there? A century of galaxy ...

Dark matter may ignite brown dwarfs into glowing “dark dwarfs” Only self-annihilating dark matter types would create this ...

Using the 21-cm forest probe will serve as an indispensable avenue for advancing our understanding of the early Universe and peering into the mysteries of both dark matter and the first galaxies.

Other scientists agree current dark matter models—many of which simulate a gravitational lens as a flat, two-dimensional object—are prone to human errors and inevitably rely on guesswork.

Dark matter might sound strange, but it is a well-supported explanation for the universe's mysteries.

The Hubble tension, a longstanding problem in cosmology, could potentially be relieved if early dark energy is taken into account.

Now, a group of astrophysicists has upped the ante: Find the tiniest, brightest galaxies near the beginning of time itself, or scientists will have to totally rethink their theories about dark matter.

Because dark matter is impossible to study directly, searching for bright patches of galaxies in the early universe could offer an effective test for theories about dark matter, which has been ...

The earliest galaxies are thought to have formed as the gravitational pull of dark matter, which has been impossible to study directly, slowly drew in enough hydrogen and helium to ignite stars ...