Context. As a star evolves, the planet orbits change with time due to tidal interactions, stellar mass losses, friction and gravitational drag forces, mass accretion and evaporation on/by the planet.

Variable Sun–planet magnetosphere interactions. a, Polar projections of the typical terrestrial auroral morphology from IMAGE FUV/WIC data. b,c, Saturn's dynamic auroral morphology observed by the ...

In the bigger picture, “down” could be defined as being below the plane of the solar system, which is known as the ecliptic.

"Our study has revealed the complex interplay between solar wind and planetary rotation, providing a deeper understanding of auroras across different planets." When you purchase through links on our ...

Earth’s rotation is speeding up. This summer, our planet will spin faster than usual, creating the shortest day since records began. Though we cannot sense these changes, they show the forces that ...

Two studies funded by NASA have concluded that Earth’s rotation is slowing due to Earth’s melting polar ice caps. This adjustment in planetary mass is enough to change the rotation as added water to ...