In the quest to unravel the mysteries of the universe, physicists are revisiting a 150-year-old theory that could illuminate ...

How did the universe come into being? There are a multitude of theories on this subject. In a Physical Review Letters paper, ...

Dark-energy evidence suggests the universe will end in a “big crunch” roughly 20 billion years from now. The universe is nearing the halfway point of what may be a 33-billion-year lifespan, according ...

This controversial theory says the universe is subject to an ultimate, higher-order law that we can’t comprehend.

Dark matter has two central properties: it has mass like regular matter, and unlike regular matter, it reacts weakly or not at all with light. Neutrinos satisfy these two criteria, but neutrinos move ...

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

Tel Aviv scientists predict ancient radio signals from the early Universe that could reveal how dark matter shaped stars and ...

In 1867, Lord Kelvin imagined atoms as knots in the aether. The idea was soon disproven. Atoms turned out to be something ...

Physicists have been chasing one of the universe’s strangest mysteries—neutrinos, nearly invisible particles that zip through ...

Modern multiverse fiction incorporates real physics equations and string theory principles rather than relying on pure ...

In many ways, Lina and Neriman's refugee journey from Iraq to Utah parallels that of a cosmic ray: covering great distances, ...

Most explanations rely on "dark energy" to explain the Universe's accelerating expansion rate, but a new study takes a different path.