The system is believed to be traveling at least 1.2 million miles per hour (1.93 million kilometers per hour), according to a ...

Stargazers will be treated to a dazzling six- and seven-planet "alignments" in February. A planetary alignment, or a "planet ...

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

Don't put your binoculars away just yet, the planet parade continues through February. Here's which planets will be visible ...

Like a celestial parade across the cosmos, five bright planets are lighting up the night sky and visible with the naked eye ...

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

Data collected by NASA's InSight lander suggest that ancient internal processes are responsible for the "Martian dichotomy" ...

Each planet is bright enough to be seen even under light polluted city skies. They appear as bright points of light with Venus being the brightest, and Mercury the faintest and most challenging.

Astronomers discovered the gas giant planet — dubbed a "hot Jupiter " — in 2016, but have continued to investigate this ...

For decades, Pluto was celebrated as the ninth planet of our solar system. However, in 2006, the International Astronomical ...