On this day - 14 February

A group of 7 men were lined up against a garage wall in Chicago and murdered on February 14th 1929, in what has since been known as the St Valentine's Day Massacre. No perpetrators have ever been conclusively identified for this attack and this remains an unsolved crime officially.

Although no formal link to Al Capone has been made, he was generally considered to be responsible for these murders. They occurred at the height of gang crime in Chicago. Rival gangs were struggling for control of the alcohol smuggling trade which was rife in this era of prohibition. The two main gangs were the North Siders, led by George Moran, and the Chicago outfit, led by Al Capone. 5 of the victims of this murder were members of the North Siders gang and the other two were associates.

BPM 37093 is a variable white dwarf star thought to be composed of carbon and oxygen. It was predicted the material within the centre of a white dwarf star would crystalise as it cooled. When carbon crystalises, it forms diamonds. It was estimated by researchers that approximately 90% of BPM 37093 had crystalised, which would mean the core of the star is one of the largest diamonds in existence.

On February 14th 2004 researchers named BPM 37093 Lucy, inspired by the Beatles song "Lucy in the Sky with Diamonds".