Pulsars suggest that ultra–low-frequency gravitational waves are rippling through the cosmos. The signal seen by ...

Most cosmologists believe that these stars were the first large, free-floating structures to illuminate our universe, and that black holes appeared later. But some have proposed that it went the other ...

Do We Live In a Simulation? Gauging whether or not we dwell inside someone else’s computer may come down to advanced AI ...

A controversial prediction about black holes and the expansion force of the universe could explain a cosmology mystery ...

Join the celebration of International Astronomy Day by looking up at the spectacular southern night sky, engaging in exciting ...

Illustration of a set of real zeros of a graph polynomial (middle) and two Feynman diagrams. Credit: Max Planck Institute for Mathematics in the Sciences How can the behavior of elementary particles ...

A representation of the evolution of the universe over 13.77 billion years. NASA's Goddard Space Flight Center Astronomers have long understood that the universe is expanding—in other words, the space ...

Off the western coast of Sumatra, the Mentawai Islands rise from the Indian Ocean in a patchwork of emerald forests and ...

Matrix models have emerged as a powerful framework in theoretical physics, offering a nonperturbative approach to describing quantum space-time. In these models, fundamental degrees of freedom are ...

George Fitzgerald Smoot III, whose experiments about space provided some of the most convincing evidence that the universe began with a Big Bang, died on Sept. 18 in Paris.