The six planets were visible in the days immediately leading up to Jan. 21, and for about four weeks afterward. Mars, Venus, Jupiter and Saturn should be visible to the naked eye. You'll need a ...

Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade ...

Mars will be making its closest approach to Earth in two years, and thus, the mighty red planet, named for the god of war ...

Mars is home to perhaps the greatest mystery of the Solar System: the so-called Martian dichotomy, which has baffled ...

Ah, Virgo, this week the stars are aligning to offer you a cosmic roadmap for personal growth. As the Full Moon in Cancer ...

Throughout January, a rare planetary alignment will become visible in the night sky, promising a rare celestial delight.

Mars was at opposition as Earth passed by it in our faster, inner orbit. Mars is still very bright and will continue to be so ...

Each zodiac sign is ruled by one or more planets, which imbue the sign with certain characteristics and energies. Here’s a ...

The lanes and clouds of dust in the star-forming Orion Nebula (M42) reveal a dark dimension to this familiar object.

Mars, Venus, Jupiter, and Saturn can be spotted without special equipment, with Uranus and Neptune requiring a telescope.

There are no stars in the sky for the same reason you don't see stars during the day on Earth, according to NASA: The bright ...