ScienceDaily: Space & Time News

An international team of scientists has proved that Mercury, our solar system's smallest planet, has geomagnetic storms similar to those on Earth. Their finding, a first, answers the question of whether other planets, including those outside our solar system, can have geomagnetic storms regardless of the size of their magnetosphere or whether they have an Earth-like ionosphere.

A new study assesses the planetary context in which the detection of methane in an exoplanet's atmosphere could be considered a compelling sign of life.