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Space

Is the expansion of the universe slowing down?

It is widely accepted that the universe is expanding at an accelerating rate, but now researchers say our measurements of the mysterious force driving that may be wrong and that the universe began to slow 1.5 billion years ago – yet other scientists disagree

News

CMB-S4 will use telescopes installed at the South Pole to measure variations in the temperature and polarization of microwave light across most of the sky to probe for ripples in space-time. Shown here is the South Pole Telescope. Photo: Brad Benson, University of Chicago, Fermilab

Space

The end of US support for the CMB-S4 telescope is devastating

Comment

The 30-year fight over how many numbers we need to describe reality

Physics

The 30-year fight over how many numbers we need to describe reality

Features

Space

Is the universe really one big black hole?

Comment

Do black holes exist and, if not, what have we really been looking at?

Space

Do black holes exist and, if not, what have we really been looking at?

Features

Space

We’ve discovered the most massive black hole yet

News

Chaotic streams of energy appear to slice through space

Physics

Is gravity a new type of force that arises from cosmic entropy?

Features

Physics

Laws of quantum physics may rule out a universe that came before ours

News

Geometric shapes yu-siang-teo-K2RZYdZTNSc-unsplash

Mathematics

Why physicists think geometry is the path to a theory of everything

Features

Trees against starry sky

Space

Why are the physical constants of the universe so perfect for life?

Conditions in our little pocket of the universe seem to be just right for life - and the much-debated anthropic principle forces us to wonder why

Features

Space

The Milky Way's black hole may be spinning at top speed

News

Physics

Light has been made into a fluid that simulates space-time

News

Space

Why it's taking a century to pin down the speed of the universe

News

Space

Dark energy bombshell sparks race to find a new model of the universe

News