While space harbors plenty of mysteries, it turns out that Uranus' smell isn't one of them. Here's the explanation for why it ...

Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade". Throughout much of January and February, Venus, Mars, Jupiter, Saturn, ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – here’s how to spot the celestial show ...

Professor John Chiang of UC Berkeley explains the impact of Earth's axial tilt and orbital eccentricity on global climate. He ...

A comical planetary beauty contest is described, highlighting the unique traits of each planet: Mercury’s fiery nature, Venus ...

Plus, the planets' paths don't lie precisely on the same plane. "[T]he puzzle for theoretical astrophysics has long been to figure out how the orbits later became out-of-round and tilted from ...

The more tilted towards the sun the northern hemisphere of the Red Planet is, the warmer it gets and vice versa. The CO2 ice turns to vapor and rises to the atmosphere when it grows warm enough.

Although the occurrence climaxed on Jan. 21 with a conjunction—close alignment—of Saturn and Mercury, the planetary parade ...