On 28 September, ESA’s Juice mission reached another important Jupiter-bound milestone with its penultimate gravity assist manoeuvre: a flyby of Earth. This encounter, however, was not only an essential step on the road to Jupiter, but an opportunity to rehearse the observations and operations that will define Juice’s exploration of the Jovian system.
Scientists used the European Space Agency’s Cheops satellite to discover that the planetary system around the star LHS 1903 challenges current planet formation theories with the unusual order of its planets. Surprisingly, the most distant outer planet might be rocky and seems to have formed later – in a different environment than the other planets around the star.
Solar wind is a never-ending stream of charged particles coming from the Sun. Rather than a constant breeze, this wind is rather gusty. As solar wind particles travel through space, they interact with the Sun’s variable magnetic field, creating chaotic and...
