In astrology, the inner planets of Venus and Mars are referred to as “personal planets.” These retrogrades are generally felt more within our individual experience, compared to the outer ...

Because planets always appear in a line, the alignment isn't anything out of the norm. What's less common is seeing so many bright planets at once.

A planet-size object that possibly once visited the solar system may have permanently changed our cosmic neighborhood by warping the orbits of the four outer planets, a new study suggests.

In the paper, the researchers describe how they modeled the orbits of the four outer planets and performed 50,000 simulations of a large object passing through the solar system to determine if ...

A planet-sized visitor possibly visited the solar system billions of years ago and permanently changed the cosmic neighbourhood by warping the orbital path of four outer planets of the system ...

Scientists suggested the enormous object disrupted the orbits of Jupiter, Saturn, Uranus and Neptune, which would explain the peculiarities of these four planets' paths. Prevailing solar ...