The revelation that Robin Williams was suffering from the early stages of Parkinson’s disease along with severe depression at the time of his apparent suicide has drawn public attention to the correlation between the diseases.

The killing of a Yale graduate student whose body was found stuffed inside a wall five days after she vanished was a targeted act, police have said, seeking to calm fears that a random killer is still at large.

NASA scientists have discovered what may be one of the youngest planets known to man.

Victor F Weisskopf, an acclaimed physicist who helped develop the atomic bomb and later advocated arms control, has died at the age of 93.