The Oort cloud is a vast belt of dust and ice that is believed to lie around one light year from the Sun and is the origin of many of the comets that pass through our solar system.

An analysis of wine prices by two French researchers shows that prices are driven by the label on the bottle, which gives the year and the origin of the wine.

More and more, these diseases are a public health threat, and almost every year the world's population is at risk of another disease of animal origin.