For over a century, Einstein's general theory of relativity has been key to understanding gravity. But new research suggests this theory "glitches" in the farthest reaches of space. That doesn't mean ...

Why is the expansion of our Universe accelerating? Twenty-five years after its discovery, this phenomenon remains one of the greatest scientific mysteries. Solving it involves testing the fundamental ...

Astronomers have finally watched a black hole do something Albert Einstein only described on paper: twist the very fabric of ...

Research teams on both sides of the Atlantic have shown that precise modeling of the universe and its contents will change the detailed understanding of the evolution of the universe and the growth of ...

New impressions A visualization of a curved space–time “sea” from the general-relativity simulations carried out by the authors.(Courtesy: James Mertens) From the Genesis story in the Old Testament to ...

Dark energy, making up 70% of the universe, causes its accelerating expansion. Gravitational waves, predicted by Einstein, were detected from colliding black holes. The Event Horizon Telescope imaged ...

For a generation, cosmologists have treated dark energy as a fixed backdrop, a steady pressure stretching space faster and ...

For decades, astronomers have puzzled over dark energy and why it's pushing our universe apart. New data from the largest 3-D map of our universe suggests we may be wrong about dark energy. Dark ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Image of the galaxy NGC 6505: the Einstein ring created by this gravitational lens can be seen in ...

KEY OBSERVATIONS Light from a dead star exploded ten billion years ago, yet it reached Earth not once, but several times, ...

A new study combining two of Albert Einstein's famous predictions suggests that ripples in space-time can combine into 'gravitational lasers', firing out of black holes in random directions across the ...