Space and time seem like two completely different ideas, but Einstein's theory of relativity shows they are interlinked in a ...

Black holes are so strange that physicists have long wondered if they are quite what they seem. Now we are set to find out if ...

A fresh black hole merger detection has offered the clearest evidence yet for Einstein’s relativity and Hawking’s predictions ...

Whether space-time exists should neither be controversial nor even conceptually challenging, given the definitions of “space-time,” “events” and “instants.” The id ...

New observations of two black holes merging have confirmed predictions made decades ago by Albert Einstein, Stephen Hawking, ...

Space-time is the map of where and when events happen. A worldline is the record of every event that occurs throughout one’s life. The key question is whether the map — or all the events it draws ...

For more than a century, physics has been built on two great theories. Einstein's general relativity explains gravity as the ...

Shubhanshu Shukla recalled being cautious about releasing objects in his initial days on the station. “I had this strange ...

Alexander Grothendieck was a titan in his field, making deep connections that fuelled a revolution in mathematics, before ...

When two massive black holes slammed into each other earlier this year, astronomers were able to observe it in the clearest ...

A Hiroshima University team has designed a feasible way to detect the Unruh effect, where acceleration turns quantum vacuum ...

This article, originally titled "The Man Who Discovered the Universe," is from the Summer 2025 issue of Air & Space Quarterly ...