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

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 ...

A new study, currently under review for publication, suggests that an ancient cosmic visitor might have significantly altered the orbits of our solar system's giant planets. Scientists propose that ...

This month's planetary alignment sees Venus, Mars, Jupiter, Saturn, Neptune and Uranus visible in the night sky all at once.

Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that ...

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

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

Venus, Mars, Jupiter and Saturn are visible to the naked eye this month and for part of February. Uranus and Neptune can be spotted with binoculars and telescopes. A youth looks through a ...

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 planets – Venus, Mars, Jupiter, Saturn, Uranus and Neptune – are currently visible in the night sky. During just one night in late February, they will be joined by Mercury, a rare seven ...

Throughout January, planets Venus, Mars, Jupiter, Saturn, Neptune and Uranus will all be visible in the night sky. However, the best time to catch a glimpse of the planets will be on Jan. 29 ...