The accelerating expansion of the universe is usually explained by an invisible force known as dark energy. But a new study ...

The universe’s accelerating expansion has long puzzled physicists. For decades, dark energy, an unseen force thought to make ...

Scientists propose a new gravity theory using Friedmann equations. Their model explains the universe’s accelerating expansion ...

Why the universe is expanding faster and faster remains one of the biggest open questions in physics. Current theories cannot ...

The rapid acceleration of the universe’s expansion continues to challenge our understanding of fundamental physics. Why the ...

The standard explanation has been dark energy, an invisible force added into the equations to make the math work. But now, an ...

What's needed to determine the shape and geometry of our universe? We know the universe will continue to expand forever, so now we can begin to complete the first Friedmann equation, and determine the ...

Why is the universe expanding at an ever-increasing rate? This is one of the most exciting yet unresolved questions in modern physics. Because it cannot be fully answered using our current physical ...

(via Science Asylum) Believe it not, Einstein originally thought the universe was static. It would take Alexander Friedmann to correct him. Here are the Friedmann equations, explained simply.

I'm studying for my Qual (12 days to go and counting), and currently slogging through cosmology. Something that was never explained to my satisfaction earlier is how inflation resolves the fine tuning ...