The largest planet in the Solar System is reaching a milestone over the weekend. It will reach something known as opposition ...

Wausau Pilot & Review Jupiter steals the show this week as the solar system’s largest planet reaches opposition, shining ...

New calculations reported by Live Science indicate Jupiter was once much larger and is still contracting as it cools, offering constraints on early solar system conditions.

Explore seven factual aspects of Jupiter, including its size, moons, rotation, atmosphere, rings, formation, and magnetic field based on NASA findings.

Pluto's days, though they drag on a bit at around 153 hours, are nothing compared to its years. Pluto's orbit takes 248 Earth ...

Jupiter will be at its most spectacular in 2026 in the early hours of Jan. 10, as it shines above the eastern horizon among ...

What was originally thought to be a planet orbiting the Fomalhaut star was probably just the fallout of a wild collision.

We’ve sent spacecraft to every planet in the solar system, but each world presents a different kind of danger. Mercury ...

The solar system’s largest planet shines bright as the Moon wanes and Saturn’s moons dance in the sky this week.

Shining in the constellation Gemini near the bright stars Pollux and Castor, Jupiter's opposition is the best time to see the ...