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

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

"We really needed the sensitivity of JWST. We also needed the 100 times magnification from gravitational lensing from a galaxy cluster between us and LAP1-B." ...

Will the universe keep existing forever? An astrophysicist explains how scientists aren’t entirely sure, but they can make predictions.

Telescopes are time machines, and astronomers are using them to find the first stars ever formed in the universe. These early generations of stars, known as Population III stars, were crucial to ...

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

Scientists working with the James Webb Space Telescope discovered three unusual astronomical objects in early 2025, which may ...

Three of the oldest stars in our universe have been discovered, and they were lurking right under our noses this whole time, and traveling in the wrong direction The heavenly bodies were detected by ...

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 ...