Of all the unanswered questions in modern science, perhaps the most talked about is whether we are alone in the universe. A ...

Stephen Hawking was born exactly 300 years after Galileo Galilei died. Their death and birth, exactly 300 years apart on ...

The long-awaited detection of gravitational waves has opened up a whole new world of astronomy. One of the key efforts is now ...

The size and spin of black holes can reveal important information about how and where they formed, according to new research.