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

Every gas giant astronomers have ever studied shares a basic recipe: a thick envelope of hydrogen and helium, with heavier ...

Scientists used some of the most advanced plasma simulations ever created to uncover how the universe builds enormous magnetic fields out of turbulence. The discovery could reshape our understanding ...

NASA’s Roman Space Telescope could reveal millions of hidden neutron stars in the Milky Way using gravitational microlensing.

For nearly a decade, scientists have been trying to understand a set of strange blue flashes coming from deep space. These ...

Time after the Big Bang may have behaved differently as extreme gravity warped spacetime across the early Universe.

Venus (mag. -3.9, in Gemini – the Twins), soon to reach superior solar conjunction, becomes visible 20 degrees above the ...

"As opposed to the other models, the compact object and Wolf-Rayet merger model does appear to easily justify all of the ...

Here’s what you’ll learn when you read this story: Scientists have used math to show how neutron stars have a backward “time’s arrow.” This is likely because their incredibly strong gravity leads to ...

Think of the heaviness that remains after your Uncle Frank starts an explosive conversation about politics at Thanksgiving dinner. That may be the least scientific, much less cosmic way of describing ...

Multi-messenger astronomy of neutron star mergers unites gravitational-wave detections, electromagnetic observations across the spectrum and potential neutrino and cosmic-ray signals to probe the ...