The first generation of stars that were born in the universe are a mystery. We can estimate when they existed and even how ...

Cosmic dawn galaxies seen by JWST reveal hidden clues about dark matter and keep rival theories about its true nature alive.

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 ...

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

In the early universe, moments after the Big Bang and cosmic inflation, clusters of exotic, massive particles could have collapsed to form bizarre objects called cannibal stars and boson stars. In ...

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 ...

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 ...

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.