Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but get a telescope and you can spot Neptune and Uranus.

The planet is the seventh largest and is currently inhabited solely by robots. However, the space agency is working hard to ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

Stargazers will be treated to a dazzling six-planet "alignment" this January.

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

BS4 may be anywhere between 17 and 40 feet across, and will approach at about twice the distance between the Earth and moon.

Six planets are parading across the sky, appearing as some of the night's brightest stars. A few easy tips can help you ...

In space travel ... passing of Earth and Mars would involve a trip directly through the sun, while spacecraft must of necessity move in orbit around the solar system's star.

Worlds will align for a "planetary parade" in January, with four bright and easily visible to the naked eye. But an even ...

7, 2025 — A researcher has used advanced models that indicate that the formation of Pluto and Charon may parallel that of the Earth-Moon system ... space. One of these chunks of Mars eventually ...

Deimos is Mars' outer moon. It's a tiny, irregularly shaped moon and smaller than Mars' other moon, Phobos. Despite being unspectacular, Deimos remains a fascinating mystery. Deimos is one of only ...