Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

While our solar system is a fascinating place on its own, exoplanets are even more of a mystery. And one exoplanet in particular is something quite new.

Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...

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

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

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

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

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.