Phys.org - Space

Could we send a spacecraft to a black hole?

Black holes represent some of the most extreme environments in the universe. They are the sources of the strongest gravitational fields, allowing us to test Einstein’s theory of general relativity to an extent impossible with […]

Phys.org - Space

Are we missing alien lighthouses?

Searching for extraterrestrial intelligence has so far primarily meant focusing on one particular type of signal—and that signal has normally been based on our own current cutting-edge technology. But what if that’s the wrong way […]