Evolving dark matter may explain cosmic acceleration. Observations support a mixed model. For years, a stubborn puzzle has sat at the center of the standard cosmological model. The evidence clearly ...

Ripley’s Believe It or Not! Museum in St. Augustine isn’t just another Florida tourist trap; it’s the granddaddy of all oddity collections, housed in a historic Spanish Renaissance castle that’s ...

The St. Augustine Ripley’s opened its doors to the public in 1950, making it the first permanent Ripley’s Believe It or Not! attraction in the world. Before that, Ripley’s collection traveled the ...

For decades, astronomers have believed that dark matter and dark energy make up most of the universe. However, a new study ...

A new study argues that dark matter and dark energy might be illusions caused by the universe’s forces fading over time. For many years, scientists have thought that dark matter and dark energy make ...

The story begins with the black hole information paradox. According to relativity, anything that falls into a black hole is ...

The new study from the team at the University of York suggests that dark matter could leave very faint, measurable marks on ...

Dark matter is an enigmatic form of matter not expected to emit light, yet it is essential to understanding how the rich ...

Gravitational waves are key clues to understanding the origin of the universe, including how stars evolved, how our galaxy formed and is distributed, and how elements in the early universe were ...

Ask most astronomers, and they'll tell you that dark matter and dark energy make up more than 95 percent of the universe and that they are the explanations for many of the large-scale phenomena we ...

Dark energy—the term used to describe whatever is causing the universe to expand at an increasing rate—is one of the universe’s greatest mysteries. The most widely accepted theory currently suggests ...