Planetary alignments aren't rare, but they can be when they involve six of the eight planets in our solar system.

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 ...

"A parade of planets, also sometimes referred to as a planetary alignment, is when several planets in our solar system appear ...

Research indicates an interstellar object might have altered the orbits of Jupiter, Saturn, Uranus, and Neptune billions of years ago ...

In the depth of winter, a sweeping view of our solar system will glow in the night sky. In total six planets will be visible, ...

The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...

Starting January 22, a rare astronomical event can be observed where Venus, Jupiter, Saturn, and Mars align in the night sky.