A new study casts doubt on the universe’s accelerating expansion, suggesting dark energy might be weakening over time.

From ROSAT’s long-archived X-ray data emerged Quipu—a 1.4-billion-light-year cosmic filament containing 68 galaxy clusters and 200 quadrillion solar masses. This colossal structure now challenges, ...

In 1919, physicist Theodor Kaluza hypothesized that extra dimensions might solve some outstanding problems in physics. And ...

Observing the wonders of the night sky begins with selecting the right telescope. Join us on Nov. 20, 2025, at 9:00 am EST ...

SETI’s ‘Noah’s Ark’ – a space historian explores how the advent of radio astronomy led to the USSR’s search for ...

In a groundbreaking development in the field of astronomy, scientists may have captured the first direct image of dark matter, nearly 100 years after it was first theorized. This invisible yet ...

Understanding how the universe transitioned from darkness to light with the formation of the first stars and galaxies is a key turning point in the universe’s development, known as the Cosmic Dawn.

Space looks very dark from Earth. But does the solar system, and the universe for that matter, have an area that's the ...

A century ago, a star in Andromeda named V1 launched a revolution in astronomy, revealing its true immensity and the origin ...

Molecules containing noble gases shouldn’t exist. By definition, these chemical elements — helium, neon, argon, krypton, xenon and radon — are the party poopers of the periodic table, huddling in the ...

CINCINNATI (WKRC) - Astronomers have found the largest known object in the universe, and its over 1 billion lightyears long and hundreds of thousands times bigger than the Milky Way. Although space is ...