If not in visible stars and galaxies, the most likely hiding place for the matter is in the dark space between galaxies.

Using the James Webb Space Telescope, a team of international researchers have discovered chemical fingerprints of gigantic ...

The James Webb Space Telescope has found compelling evidence for "monster stars" — gigantic, primordial stars that existed in the early universe.

In the early universe, moments after the Big Bang and cosmic inflation, clusters of exotic, massive particles could have ...

In the end, the Universe becomes a place where gravity and quantum physics slowly turn all mass into faint streams of particles.

Scientists working with the James Webb Space Telescope discovered three unusual astronomical objects in early 2025 that may be dark stars.

Stars powered by dark matter instead of nuclear fusion could solve several mysteries of the early universe, and we may have ...

An MIT astronomy class has found three of the oldest stars in the universe lurking right outside the Milky Way. The stars, about 30,000 light-years from Earth, are in the galaxy's "halo," the cloud of ...

The first generation of stars transformed the universe. Inside their cores, simple hydrogen and helium fused into a rainbow of elements. When these stars died, they exploded and sent these new ...

Astronomers reanalyzed the chemical composition of three stars in the Milky Way's halo and found that they are between 12 and 13 billion years old. They may have also been stolen from other galaxies.