The space is a wide, vast void that is full of unexplored stars, planets and even galaxies ... Here are five facts about space you might not know about. In space, no one can hear you scream.

The Red Planet is rocky, much like Earth. The inside structure of Mars is also similar to Earth's, NASA rovers have revealed. Mars' outer crust is 6 to 30 miles (10 to 50 km) thick and is composed ...

The outer planets Uranus, Neptune, and Pluto shape generational trends, from technological revolutions to spiritual awakenings and societal transformations. Uranus drives innovation, Neptune ...

How many moons it has: At least 274 known moons, with more likely to be discovered With its beautiful rings, Saturn may be the most stunning planet in ... of a moon in the outer solar system.

The first layer is the crust, a thin outer shell that extends about 18 miles (30 km) below the planet's surface. The next layer, the mantle, stretches about 1,800 miles (2,900km) below Earth's ...

New NASA research has discovered that four moons that orbit the far outer planet — Ariel, Umbriel, Titania and Oberon — may have the composition to host life. It was discovered that these four ...

With its beautiful rings, Saturn may be the most stunning planet in the solar system ... first robot to reach the surface of a moon in the outer solar system. It took amazing photos of seas ...