We'll see six planets in the first part of February – Mars, Jupiter, Uranus, Neptune, Venus and Saturn – and on Feb. 28, they ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Four planets will be in the parade in January, while seven will align in February. Here's how to see the events.

While planets circle the sun in what's called and heliocentric orbit, they rarely fall together in what appears to the human eye as somewhat of line across the visible horizon. Saturday is one of ...

On this date, Jan. 13, 1986, astronomer Stephen Synnott using data collected by NASA’s Voyager 2 probe discovered three additional moons in orbit around Uranus. Those moons are Desdemona ...

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

Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade". Throughout much of January and February, Venus, Mars, Jupiter, Saturn, ...

Venus, Mars, Jupiter, Saturn, Uranus and Neptune will align in the night sky ... This occurs when the planets' positions in their elliptical orbit around the sun line make them seem like they are ...

Five of the brightest planets will be visible to the naked eye. With help, you may even spot Uranus and Neptune.

Neptune and Uranus will be there, too, but they won't be shining brightly like the others. Planets, including Earth, orbit around the sun in a line called the ecliptic. But what we see in the night ...