But of these planets, which is nearest to the sun? Mercury is the closest planet to the sun, followed by Venus, Earth, Mars, ...
An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...
The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...
Spotting one or two of the planets in our solar system is well worth a good skywatch, but seeing (almost) all of them in a ...
Long ago, a planetary object eight times the mass of Jupiter may have once visited the solar system and altered […] The post ...
In addition to passing around the sun’s far side, the two inner planets, Venus and Mercury, pass between us and the sun. Uranus and Neptune, regardless of where they were in their orbits ...
Jupiter and Mars will take turns aligning with the moon, creating a breathtaking celestial spectacle that will light up the ...
These instruments measure what's termed 'radial velocity' — the amount by which a star wobbles around the center ... In the ...