See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A bizarre "cosmic glitch" in the theory of how the gravity of the ...

In spring 1919, Albert Einstein’s theory of general relativity was tested during Arthur Eddington’s eclipse expedition to Principe. The photographs showed starlight bending near the Sun, giving the ...

110 years ago today, Albert Einstein published his General Theory of Relativity, which redefined the relationship between matter and gravity. Suddenly, our mysterious universe made a little more sense ...

IN MARCH, a team of physicists announced that they had detected ripples in space-time produced at the universe’s birth. Their claims took the world by storm. One of my colleagues declared it the most ...

Our universe emerged when spacetime’s building blocks “crystallized” into being, according to a controversial theory.

The general theory of relativity is based on the concept of curved space–time. To describe how the energy and momentum of fields are distributed in space–time, as well as how they interact with the ...

As researchers detail in a study published today in the journal Nature, a star dubbed S301 exists so close to Sagittarius A*, ...

We all have some past events that we'd like to undo. These can be minor moments, such as a failed exam or an argument with friends, or world-changing incidents, such as the 2019 outbreak that led to ...

In casual conversation, people often use the word theory to mean "hunch" or "guess": If you forget to put the bread in the breadbox and discover chunks have been taken out of it the next morning, you ...

You're currently following this author! Want to unfollow? Unsubscribe via the link in your email. On April 8, millions of people across the US will all do the same thing: look up. In the middle of the ...