Scientists are using wine to help test a device designed to search for life on Mars.
Scientists will need detailed geologic maps of Mars to guide their search for life there. Typically such maps are produced through painstaking human field work. But a group of scientists wants to know whether a robot could do the job instead.
Finding new planets around distant stars has become commonplace. But now a team of astronomers has succeeded in predicting the orbit of a planet that hadn't yet been discovered. The last time that happened was more than 150 years ago.