"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today." When you purchase through links on our site, we may earn an affiliate ...

NASA research reveals that the heliosphere, our solar system's protective bubble, may resemble a deflated croissant rather than a comet. This new model, based on the behavior of solar wind particles, ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...