Lucy Hawking, daughter of Professor Stephen Hawking, talks to Laura Fine, daughter of Dennis Klatt, about her father's pioneering work on modern speech synthesis.

We're replacing BBC Sounds outside the UK and bringing you BBC.com, a seamless way to read, watch, and listen - all in one place. We use cookies to give you the best online experience. Strictly ...

Black holes may be the fiercest objects in the universe, yet we still know very little about them. It has only been a decade since we confirmed their existence by detecting gravitational waves: ...

On Sept. 14, 2015, physicists attained the long-sought goal of detecting gravitational waves, the shockwaves spewed out by such cataclysmic events as the violent merger of two black holes. Now, in the ...