Space travel isn’t as simple as pointing and flying, timing and fuel efficiency are key. The Moon is just a few days away, but Mars takes months, and reaching Jupiter can take years. Gravity assists ...

The International Astronomical Union on Tuesday ratified the recent discovery of 128 previously unknown moons orbiting Saturn, taking the gas giant’s count of known natural satellites to 274. The ...

The ringed gas giant Saturn has officially replaced Jupiter as the planet in our solar system with the most moons. The International Astronomical Union officially recognized 128 new moons orbiting ...

The first astronauts preparing to fly to the moon in more than 50 years want your help identifying their fifth crew member — their "moon mascot." NASA's Artemis 2 crew is seeking an original ...