Discover the order of planets in the solar system. From Mercury to Neptune ... system formed about 4.6 billion years ago from a giant rotating cloud of gas and dust known as the solar nebula.

Initially, the planets formed out of a rotating disk of gas and dust around ... sometimes causing protoplanets to be ejected ...

In the solar system system there are certainly ... It was, however, suggested by Darwin that all the planets might have originally had a retrograde rotation, and that the friction of the solar ...

Astronomers have found thousands of exoplanets — worlds beyond our solar system ... rotation effects. None could explain the rate or direction of the precession. The only explanation left: a ...

Every other solar system planet was named for a Greek or ... protection from Earth's magnetic field, generated by our planet's rotation and its iron-nickel core. This teardrop-shaped field shields ...

Mercury zips around the Sun at about 47.87 km/s, making it the fastest moving planet in the solar system. Venus travels at ...

Once the quirky underdog of our solar system, Pluto held planetary status until 2006 ... the time it takes for Pluto to complete one full rotation on its axis, is about 153 Earth hours or 6.4 ...

If there is a black hole, it's at least 20 times farther from Earth than the furthest planet, Neptune, in a distant region of our solar system called the extended Kuiper Belt. The belt is home to ...

NEW YORK (AP) — A new Tatooine-like planet outside the solar system may orbit two failed stars, scientists reported Wednesday. Located about 120 light years away, the exoplanet appears to take ...

They believe that Vesta was on its way to becoming a planet and that the Solar System's rocky planets likely ... that measures how an object resists rotation. As an object rotates on its axis ...