As planetary systems evolve, gravitational interactions between planets can fling some of them into eccentric elliptical orbits around the host star, or even out of the system altogether. Smaller ...

The shape of a planet's orbit is one of its fundamental properties, along with its size and distance from its host star. Earth has a nearly circular orbit, but some planets outside our solar system, ...

Star and planet formation has largely been considered separate, sequential processes. But in a new study, scientists at Southwest Research Institute (SwRI) have modeled a different scenario where ...

For the inner four planets in this solar system, each planet orbits the sun three times for every two orbits of the planet immediately to its outside. For the fourth, fifth and sixth planets, they ...

“The Sun’s death is not an event the planets will quietly survive—it is the trigger for their orbital undoing.” Reading time 3 minutes Our Sun is just like any other star. That is, eventually the Sun ...

Caltech researchers show the Sun's own dying mass ejections will destabilize the outer solar system within a billion years of ...

Solar storms satellites must withstand are among the most powerful natural space events, driven by space weather activity that releases massive energy bursts into the solar system. These events ...