New cosmic ray theory: Researchers suggest ultraheavy atomic nuclei may explain the origins of the highest-energy cosmic rays ever detected. Why it matters: Ultraheavy nuclei could survive longer ...

There may be an ultraheavy explanation for the mystery surrounding the origins of the highest-energy particles ever observed.

New cosmic ray clue: Scientists propose that ultraheavy nuclei could explain how the most energetic cosmic rays reach Earth. Survival advantage: Ultraheavy nuclei lose energy more slowly in space, ...

In The Fantastic Four: First Steps, Franklin Richards is born with the Power Cosmic, an unlimited energy source linked to Galactus. Reed and Sue’s exposure to cosmic radiation during conception causes ...

The deepest mysteries of the universe often begin with the biggest questions. Few are more puzzling than the birth of supermassive black holes. These giants, weighing millions to billions of times ...

When we start talking about Earth's origin, there are many theories on the table that have been tossed around for years, with the Big Bang hypothesis often leading the charge. But thanks to the James ...

Astronomers have solved the decade-long mystery of how a bizarre cosmic object toggles rapidly between "high" and "low" energy states: by launching plasma cannonballs from its orbit. The object in ...

The Universe is big, as Douglas Adams would say. The most distant light we can see is the cosmic microwave background (CMB), which has taken more than 13 billion years to reach us. This marks the edge ...