Scientists have been using complicated, hypothetical particles to explain the Big Bang, but this theory posits that a simpler ...

Through ten chapters, the book traces astronomy from its roots in ancient ideas of cosmology and geocentrism, through the Renaissance, the Newtonian Revolution, and the dawn of modern physics. It ...

Astronomers using the James Webb Space Telescope (JWST) have made a groundbreaking discovery that could validate long-held assumptions about the early universe. The discovery, detailed in a recent ...

If recent discoveries that dark energy is evolving hold any water, our Universe will collapse under its own gravity on a ...

A radical new theory regarding the origin of the universe suggests that gravitational waves, tiny ripples in spacetime first predicted by Albert Einstein back in 1915, could have given rise to cosmic ...

A faint radio "whisper" from ancient hydrogen reveals the universe was heating up long before it filled with starlight.

Our universe may have been born in a gravitational crunch that formed a very massive black hole—followed by a bounce inside it. The Big Bang is often described as the explosive birth of the universe—a ...

The Big Bang theory is supported by the observed expansion of the universe and the cosmic microwave background radiation. The universe's early moments involved a hot, dense state with the formation of ...

For two decades, scientists believed the cosmological constant, known as λ (lambda), was positive. That meant the Universe ...