Let's rewind the clock back…oh, I don't know, let's say a hundred years. It was 1917, and Einstein had just developed his ...

The universe is expanding. That much is clearer. But it’s less clear whether this expansion is accelerating or slowing down.

The solar system is moving through space over three times as fast as estimated, calling into question our best model of the ...

The mysterious force called Dark Energy, which helps the Universe to expand, might be changing in a way that challenges our ...

Evidence suggests the universe’s expansion has started to slow, not accelerate. The results imply dark energy is weakening ...

The Big Bang theory has dominated our understanding of the universe’s origin for almost 100 years. It describes a moment when all of space, time, and energy were born from a single infinitely dense ...

What is the actual speed and direction of our solar system as it moves through the cosmos, and how does this compare to ...

Precise measurements from multiple radio telescopes strongly suggest that our solar system is moving far too fast for our ...

The scientific study of cosmology, the field that focuses on the origins and evolution of the universe, is barely a century old. It has already been transformed more than once by new ideas, new ...