ESA's Mars Express orbiter captured footage of the Mars' moon Deimos pass in front of Ganymede, Europa, Jupiter, Io and ...

What color is moonlight typically, and what other colors can moonlight look like from our perspective on Earth?

NASA's Voyager 2 spacecraft made its closest approach to Jupiter. It came within 354,000 miles (570,000 kilometers) of the ...

Before defining what a light-year is, we should define what a light-year is not: It is not a measure of time, but rather a ...

Volcanic planets with static crusts, called Ignan Earths, can maintain liquid oceans and temperate climates favorable to life.

Lake Effect astronomy contributor Jean Creighton shares some myths behind some of our solar system’s most famous moons and ...

Mercury reaches its greatest elongation, 26 degrees east of the sun on July 4. From latitude 40 degrees north, the +0.6-magnitude planet is low in the west-northwest and sets during twilight about 1.5 ...

From living matter to molecules to elementary particles, the world is made of “chiral” objects that differ from their ...

The Space Act, which would apply to local and foreign companies, aims to simplify procedures, protect assets in orbit, level ...

Bitcoin's price action is heating up again as analysts lean increasingly toward a $120K target. Technical momentum continues to build on weekly timeframes, ...

We measure the extremely long distances between things in space by light years. A light year is the distance that light travels in one Earth year. Light travels at about 300,000 kilometres per second.

Jupiter isn’t alone in this category; Saturn, Uranus, and Neptune are also gas giants, though Uranus and Neptune are often ...