439 Venus Rotation Rate

Scientists mapping Venus’s surface with the European Space Agency’s Venus Express orbiter recently received a shock when features on the planet’s surface appeared to have moved up to 12.4 miles from where they were expected to be, reports National Geographic. The measurements, if correct, would seem to indicate that Venus’ rotation has slowed by 6.5 […]

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440 Length of A Galactic Year

A galactic year, also known as a cosmic year, is the time it takes our Solar System to travel once around the Milky Way’s core. It is between 225 and 250 million years. See 441 Solar System Orbital Speed The mass at the central core of the Milky Way is located within the circle of […]

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441 Solar System Orbital Speed

Our Solar System orbits the Milky Way’s core, between 225 and 250 years. Yes, the Sun—in fact, our whole Solar System—orbits around the center of the Milky Way Galaxy. We are moving at an average velocity of 828,000 km/hr. But even at that high rate, it still takes us about 230 million years to make […]

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448 Size of Jupiter

Jupiter is the largest planet in the solar system. Fittingly, it was named after the king of the gods in Roman mythology. In a similar manner, the ancient Greeks named the planet after Zeus, the king of the Greek pantheon. Let’s compare the planets. The first number column is the planet’s equatorial radius in kilometers […]

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