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

A planetary alignment, or a "planet parade" according to the internet, will grace our night sky just after dusk, according to ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

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

Though the planets are always “aligned,” seeing more than four in the sky is more uncommon. February’s lineup is a chance to ...

Although it's being mistakenly promoted as a "rare planetary alignment," one of the best "planet parades" in half a century ...

Most ozone-depleting substances also contribute to global warming. By reining in these substances and protecting carbon sinks ...

Six planets will be in alignment this weekend, with four of them shining bright in one sweeping view. What to know about the ...

The planet parade occurs when the planets' positions in their elliptical orbit around the sun line make them seem like they are close in the sky. As per Conafay, "It’s happening because of the ...

Mars is in opposition through the entire month of January, meaning it will be directly opposite the Sun from Earth and will ...

Satellites have managed to detect faint electromagnetic signals generated by ocean tides, suggesting that space-born sensors ...

Known as the "Parade of Planets," the celestial event will feature appearances from Mars, Jupiter, Uranus, Venus, Neptune and ...