A spacecraft traveling at 99 percent the speed of light toward Alpha Centauri would cross 4.3 light-years in what feels like ...

Theoretical physicists have spent decades wrestling with a disorienting possibility: that the flow of time is not woven into ...

Explore how Albert Einstein transformed our understanding of the universe with groundbreaking theories like relativity and ...

Hollywood has never been known for its strict adherence to science. In most blockbusters the laws of physics are treated more ...

It's well known that spaceflight causes muscle atrophy and other biological changes in reduced gravity, and especially in ...

Time has an arrow: It only ever seems to move in one direction. The future is always unknown to us, while the past forever remains locked and inaccessible. And yet, the vast majority of the laws of ...

A new data release more than doubles the number of gravitational-wave candidate events—and reveals unexpected complexities of merging black holes ...

How fast can a galaxy build ordered magnetic fields spanning thousands of light-years? Existing theories say several billion ...

Project Hail Mary reminds us how important our world is – and how vital science is to our continued existence on it.

A novel theory suggests that the current expansion rate of the universe is not fixed, but was in fact quite different in the ...

Our sun was born 4.6 billion years ago near the crowded center of the Milky Way and then migrated roughly 10,000 light-years ...