Scientists have detected changes in cosmic rays that could reveal the true origin of these extreme particles in the universe.

Cosmic rays (CRs) are energetic particles traveling through space at speeds close to that of light. They consist of atomic nuclei, electrons, positrons, high-energy gamma rays, and neutrinos, and are ...

Ultrahigh energy cosmic rays may be made of nuclei heavier than iron, according to a May 2026 Penn State study in Physical ...

Scientists have discovered that ultraheavy atomic nuclei could explain some of the highest-energy cosmic rays ever observed.

Cosmologists have long struggled to determine whether the universe's accelerating expansion is being driven by a simple ...

Anyone who has been paying attention to cosmology over the past few years is aware of problems with our best attempts to ...

Mathematicians are challenging the idea that dark energy is responsible for the accelerating expansion of the universe. In a new paper published in Proceedings of the Royal Society A, mathematicians ...

The international cosmic ray observation mission reveals a key feature of these rays, marking a major advance in ...

Harvard astrophysicist Avi Loeb says humanity may be nearing a 'cosmic revolution' as AI and new sky surveys could finally ...

Add Yahoo as a preferred source to see more of our stories on Google. A new physics model suggests the universe began with a bounce inside a black hole, not a singular Big Bang. (CREDIT: Wikimedia / ...

Larry de Ghetaldi (Merrill ’76, biology and chemistry), and Nicholas Suntzeff (Ph.D. ’80, astronomy) are recognized for careers of exceptional distinction in biomedical research, healthcare policy, ...

AI computing platform is pushing edge intelligence into orbit, enabling real-time onboard data processing for satellites, ...