A particle-based calculation uses information theory to estimate cosmic bits, without proving information is a new state of ...

The portion of the cosmos from which light has had time to reach Earth spans roughly 92 to 93 billion light-years in diameter, a figure that dwarfs the 13.8-billion-year age of the universe and ...

The Big Bang is often presented as if science has completely solved the beginning of the universe: everything started in one ...

Measurements of ancient light from the cosmic microwave background suggest that the universe is remarkably flat. But that does not prove it is infinite, because the observable cosmos could be only a ...

Learn more about space exploration, the tools we use to search the stars, what we’ve found so far, and the overview effect, a phenomenon many astronauts, including Sunita Williams, experience when ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Forbes contributors publish independent expert analyses and insights. I cover aerospace, astronomy & hosted The Cosmic Controversy Podcast. Cosmic voids that stretch across millions even billions of ...

Space. It's really, really big. How big is it? Well, according to astronomers, the observable universe is around 92 billion light-years in diameter, but that's all we can see (hence the word ...

The surface of Earth is finite. We can measure it. If it was expanding, then its size would grow with time. And once again, good ol' Earth helps us understand what the universe might be doing beyond ...

The boundary of everything humans can observe stretches roughly 92 billion light-years across, a figure shaped by 13.8 billion years of cosmic expansion since the Big Bang. That number, derived from ...