A planet-size object that possibly once visited the solar system may have permanently changed our cosmic neighborhood by ...

Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

Artist's impression of Planet Nine – a suspected “wide-orbit” planet – with the Sun in the distance; Neptune's orbit is shown ...

What Planets Will Be Retrograde During July 2022? The short answer is, well, a few. Saturn retrograde began on June 4 and will end on Oct. 12, Jupiter retrograde begins July 28 and will end on Nov ...

Planets & Transits News: The outer planets in astrology, including Uranus, Neptune, and Pluto, have significant effects on generational attitudes and societal trends. Jupiter ...

Astronomers have discovered six planets orbiting a bright star in perfect resonance. The star system, 100 light-years from Earth, was described on Wednesday in a paper published in the journal ...

The outer planets move a lot slower: Jupiter takes 12 years to orbit the Sun, Saturn takes 29," he said. "So, as long as Jupiter and Saturn are visible, ...

Using computer models of the four outer planets, the team carried out 50,000 simulations of such flybys, each over 20 million years, while altering certain parameters of each visitor, ...

Using computer models of the four outer planets, the team carried out 50,000 simulations of such flybys, each over 20 million years, while altering certain parameters of each visitor, including ...