The giant planet Jupiter is back in our evening sky this week. Fresh from its opposition with the sun on Jan. 10, it now lies as close to the Earth as it ever comes, and shines at its most brilliant.

The space agency has learned a lot over 10 years observing the weather of our solar system's outer planets. When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

Observations of Jupiter show that ammonia is unevenly distributed in the upper atmosphere, against expectations of uniform mixing. Scientists found evidence for a complicated but apparently real ...

The shocking findings were part of a recent study in which astronomers effectively peered back in time to discover what Jupiter was like in its early years. Jupiter is not only the largest in the ...

A five-planet alignment will be visible in the night sky on Tuesday. Don't miss your lucky chance to see the stars -- or planets -- align. A five-planet alignment of Mercury, Jupiter, Venus, Uranus ...