Long ago, a planetary object eight times the mass of Jupiter may have once visited the solar system and altered […] The post A Mysterious Object Visited Our Solar System And Altered The Orbits Of Four ...

and in fact they are exactly edge on as seen from the sun. But because Saturn’s orbit around the sun is tipped very slightly relative to Earth’s, we only see the rings precisely edge on at ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course.

Here’s how it works. The term "perihelion" describes the point in an astronomical body's orbit where it is nearest to the sun. Derived from the Greek words peri (around) and helios (sun), the ...

But of these planets, which is nearest to the sun? Mercury is the closest planet to the sun, followed by Venus, Earth, Mars, ...

Everyone's talking about it on social media: A great planetary alignment that's coming sometime this month — there are a few different dates being thrown around. Rumor has ... The planets in our solar ...