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

This unique image was released by NASA in honor of Jupiter reaching opposition, which is when Jupiter, Earth, and the sun are aligned, with Earth positioned directly between Jupiter and the sun.

Venus, Saturn, Jupiter and Mars are all visible after sunset, but social media claims about it being a rare "planetary ...

The six planets will be visible in the days immediately leading up to Jan. 21, and for about four weeks afterward. Mars, ...

A rare four-planet conjunction will be visible most of this month as Venus, Jupiter, Saturn, and Mars light up the sky.

This NASA Hubble Space Telescope image shows the planet Jupiter in a color composite of ultraviolet wavelengths. Released on ...

A rare parade of planets will light up the night sky throughout January. Six planets will be in alignment for the rest of the ...

Plus: Saturn’s moon Iapetus is visible, our Moon passes the bright star Spica, and Mars skims south of Pollux in Gemini in ...

The moon will pass closely by Jupiter this evening (Jan. 10), meeting up with the gas giant in the constellation Taurus.

A few days later on January 17-18, Venus and Saturn will get close in the sky for a conjunction. NASA says the two planets will be just two degrees apart in the evening sky. All the while, Mars will ...