Astronomers found the Milky Way lies within a massive flat sheet of dark matter about 32 million light-years across. Simulations show this structure and nearby cosmic voids balance gravitational ...

For the first time, scientists have used Earth-based telescopes to look back over 13 billion years to see how the first stars in the universe affect light emitted from the big bang. Using telescopes ...

The study of cosmic ray anisotropy and magnetic fields lies at the intersection of astrophysics and plasma physics, revealing subtle imprints of the turbulent interstellar medium and the local ...

New research points to fragments of a comet exploding over North America approximately 13,000 years ago, sparking firestorms and rapid cooling that could have contributed to the extinction of mammoths ...

Cosmic ray air showers are produced when high-energy cosmic particles enter Earth’s atmosphere and interact with atmospheric nuclei, generating cascades of secondary particles. These extensive air ...

Through nine questions, from the merely intriguing to the existential and utterly bonkers, this special feature confronts the staggering vastness of the cosmos and our place in it. Neutrinos have ...