The Earth orbits around the Sun at an astonishing 67,000 miles per hour. It takes the Earth 365 days to make a complete circle around the Sun.
In addition to the incredible speed Earth is traveling through space, the blue planet is rotating at an approximate 1,000 miles per hour at the equator and near zero at the poles. It is difficult to recognize the speed at which an object is moving unless one has a visual reference, so people do not notice how fast Earth is traveling. Gravity holds people and objects down so that they remain on Earth while it orbits.Learn More
Earth's solar system has only one sun, but if the word "sun" is taken to mean "any star with planets in orbit," the Milky Way might have as many as 400 billion suns. If the observed ratio of approximately one planet per star is consistent everywhere, the observable universe might contain 10^24, or 1 septillion, suns.Full Answer >
Europa is one of Jupiter's four large moons, and its distance from the sun is always the same as Jupiter's, plus or minus the radius of Europa's orbit. Depending upon its position in orbit, Europa is 779.4 million to 780.6 million kilometers from the sun.Full Answer >
According to Astronomy.com, the Sun is nearly spherical with a very slight equatorial bulge, Earth is an oblate spheroid, and the Moon is somewhat lemon-shaped. These three bodies' shapes are influenced almost entirely by their gravity and centrifugal forces acting on them.Full Answer >
By every measure of size and mass, the Sun is much larger than the Earth. The Sun has a diameter of nearly 1.4 million kilometers and a mass 330,000 times that of the Earth. The Sun represents over 99 percent of all the mass in the solar system.Full Answer >