Jupiter reaches opposition on Jan. 10, when it will shine all night at its brightest as Earth moves between the giant planet ...

Jupiter harbors more oxygen than the sun, a new study finds, giving astronomers a crucial clue about how our solar system's ...

An expert astrologer shares how the planets in astrology impact your personality, life path, and birth chart.

Skygazers, mark your calendars because one of the coolest celestial events is coming around again toward the end of February.

"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if ...

Spectacular clouds swirl across the surface of Jupiter. These clouds contain water, just like Earth's, but are much denser on ...

At half the size of Earth and one-tenth its mass, Mars is a featherweight as far as planets go. Yet new research reveals the ...

Add Yahoo as a preferred source to see more of our stories on Google. The sun shines above the Earth’s horizon. Perihelion, the point when Earth is closest to the Sun, occurs annually in early January ...

Jupiter currently shines as a brilliant silvery "star" in the constellation Gemini the Twins, low in the east-northeast sky as dusk slowly fades. You really should catch the show.

Astronomers have long sought evidence to explain why comets at the outskirts of our own solar system contain crystalline ...

Pluto, once considered the ninth planet, was reclassified as a dwarf planet in 2006 because it shares its orbital path with ...

Earth is right in between Jupiter and the Sun right now. That makes the gas giant appear brighter. Here's how to watch.