Astral visitor may have changed orbital path of solar system planets, says study. Paths of four outer giant planets, Jupiter, Saturn, Uranus and Neptune minorly deviate from ideal orbital shape.

For about 4.5 billion years, our planet has circled the sun on a stable, rhythmic path. Each of Earth's orbits takes approximately 365.25 days to complete, defining the length of a year. But how ...

WASHINGTON >> Scientists have identified an object about 435 miles wide inhabiting the frigid outer reaches of our solar system that might qualify as a dwarf planet, spotting it as it travels on a ...

That means it sometimes is closer to the sun than Pluto, whose orbital distance ranges from 30 to 49 astronomical units as it travels an elliptical path around the sun.

Named 2017 OF201, this distant celestial body travels on a highly elongated orbital path around the sun, making it one of the most remote visible objects in our solar system.

The Vera C. Rubin Observatory is expected to find millions of unknown objects in our solar system, and perhaps even a ...

Our solar system may have a ninth planet after all, ... but the new definition of a planet requires the celestial body to have enough gravity to clear its orbital path from other bodies. ...

Jupiter's gravity, often called the "architect" of our solar system, played a critical role in shaping the orbital paths of other planets and sculpting the disk of gas and dust from which they formed.

Astronomers are proposing a new, more quantitative definition of what makes a planet. The new definition looks more directly at the object's mass — but it would still leave Pluto out of the running.

In a study published Tuesday in the journal Physical Review D, physicists at MIT say the presence of a tiny black hole speeding through the solar system could be identified by the gentle ...

Earth’s orbital distance from the Sun is called an astronomical unit. 2017 OF201 is currently located at a distance of 90.5 astronomical units from the Sun, meaning 90.5 times as far as Earth.