A planet parade like the one beginning tonight is quite uncommon, occurring once every 10-20 years. Here are the planets you ...

Sky gazers will get a peek at what has been called a "parade of planets," where this time around, up to seven planets may ...

Smaller gas giants are less likely to survive in such systems, surrounded by clashing planetary titans. With their lower ...

NASA's Director of Planetary Science, Jim Green, discusses the Jan. 20 2016 Astronomical Journal science paper that points to ...

The newcomer replacing Pluto presently goes by “Planet Nine.” If and when it finally shows up, it will get the honor of a ...

A very rare treat is about to grace Earth's night skies.

For most of January, four of the eight planets in our solar system (sorry, Pluto) will be visible if the sky is clear enough ...

There are eight official planets (sorry, Pluto) in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and ...

An event called a "ring plane crossing" will occur between Saturn and Earth on March 23, 2025, when Saturn's rings will ...

Six planets will all be visible at once in the night sky this month, lined up across the sky—but one is set to disappear from view.

Hong Kong residents will have the rare opportunity to observe four of the brightest planets in the solar system with the ...

A few decades ago, the Solar System had nine planets, but in 2006 the International Astronomical Union reclassified Pluto as ...