The four-planet lineup that began in January concludes by mid- to late February, as Saturn sinks increasingly lower in the ...

Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

The solar system is portrayed as a dynamic, gossip-fueled family, with each planet offering snide comments about one another, ...

Take advantage of a special 6-7 planet alignment from Earth's perspective. Planets 'line up' in the skies over California in ...

The article humorously assigns zodiac signs to each planet, depicting their unique traits and behaviors. It presents the ...

NASA said the system is thought to be moving at least 1.2 million miler per hour, nearly twice as fast as our solar system.

If the solar system held a poetry slam, each planet would present its unique poetic style. Mercury delivers rapid-fire verses ...

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.