Planets

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Saturn is between 1.2 billion kilometers (0.0001268 light years) and 1.67 billion kilometers (0.0001765) from Earth, depending on where both planets are in their orbits, according to Universe Today. Earth and Saturn are farthest from each other when on opposite sides of the Sun.

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  • What are some interesting or unique features of Neptune?

    Q: What are some interesting or unique features of Neptune?

    A: Neptune was the first planet to have its existence predicted by mathematical calculations before it was seen through a telescope. According to Space, wind speeds on Neptune can reach up to 1,500 miles per hour; the fastest detected in the solar system as of 2014. This incredibly high wind speed was recorded by Voyager 2 in 1989 and was linked to a storm larger than planet Earth.
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  • What is Saturn's mass?

    Q: What is Saturn's mass?

    A: Saturn's mass is 258,326,818,200,000,000,000,000,000 pounds (568,319,000,000,000,000,000,000,000 kilograms). The sixth planet in the solar system and the second largest after Jupiter, Saturn is about 886 million miles away from the Sun. According to the National Aeronautical and Space Authority, Saturn completes one rotation (spinning on its axis) in 10.70 Earth-hours.
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  • Can humans live on Uranus?

    Q: Can humans live on Uranus?

    A: Based on scientific knowledge as of 2014, it is not possible for humans to live on Uranus. As a gas giant, Uranus lacks a solid surface for landing spacecraft or building long-term habitation facilities.
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  • Have any man-made satellites been sent to Mars?

    Q: Have any man-made satellites been sent to Mars?

    A: Several man-made satellites have been sent to Mars since 1964. The first spacecraft to Mars, known as Mariner 3, was launched on Nov. 5, 1964. This spacecraft malfunctioned and failed to fly by Mars as planned.
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  • Why is Mars called "the Red Planet"?

    Q: Why is Mars called "the Red Planet"?

    A: Mars has been given the moniker "the Red Planet" because it has a bright red color. This reddish colors probably marks the areas that are like deserts on the Martian landscape; the grayish areas are the liquid parts.
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  • Where is the highest temperature on Jupiter?

    Q: Where is the highest temperature on Jupiter?

    A: The highest temperatures on Jupiter are found in its core and are estimated at over 60,000 degrees Fahrenheit. Due to Jupiter's distance from the Sun, most of its heat comes from its core, and the temperature generally decreases moving away from the planet's center.
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  • What are types of moons?

    Q: What are types of moons?

    A: There are eight different phases or "types" of the moon: new, waxing crescent, first quarter, waxing gibbous, full, waning gibbous, last quarter and waning crescent. These phases repeat themselves approximately every 29.5 days.
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  • When did Pluto become a dwarf planet?

    Q: When did Pluto become a dwarf planet?

    A: Pluto became a dwarf planet in 2006. Upon being stripped of its title as a planet, Pluto joined two other celestial bodies, called Eris and Ceres, in the category of dwarf planets. The decision to reclassify the former planet was made by the International Astronomical Union (IAU).
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  • What do all the planets have in common?

    Q: What do all the planets have in common?

    A: In order to be declared a planet, a celestial body must meet the following qualifications: It must orbit the sun, it must maintain a nearly spherical shape and have the necessary mass for self-gravity so that it does not succumb to rigid body forces, and it must clear the neighborhood around its orbit. All recognized planets in the solar system meet this definition.
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  • What planets can you see without a telescope?

    Q: What planets can you see without a telescope?

    A: The planets Mercury, Venus, Mars, Jupiter and Saturn can be seen without the help of a telescope, and, in the right conditions, it may also be possible to see Uranus without a telescope. It requires good eyesight, little light pollution and the knowledge of exactly where Uranus is in the night sky to see it, making it difficult or impossible to see without a telescope.
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  • How much would a 100 pound person weigh on Neptune?

    Q: How much would a 100 pound person weigh on Neptune?

    A: A 100-pound person who stood, or floated, on the surface of Neptune would weigh 114 pounds. Although Neptune is much more massive than Earth, it's far less dense, so the acceleration of gravity at its surface is weaker than expected for a planet that is 17 times Earth's mass.
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  • How far away is Saturn from the sun?

    Q: How far away is Saturn from the sun?

    A: Saturn is an average of 886 million miles from the sun, which puts it about 9.5 times farther away from the sun than the Earth. The exact distance from Saturn to the sun varies based on Saturn's location along its elliptical orbit.
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  • What planet in our solar system is closest in size to Earth?

    Q: What planet in our solar system is closest in size to Earth?

    A: Venus is, by far, the closest match to the Earth in size. Venus has a measured diameter that is just about 95 percent that of the Earth and a planetary mass equal to 81.5 percent of the Earth's.
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  • What kind of atmosphere does Neptune have?

    Q: What kind of atmosphere does Neptune have?

    A: Neptune's atmosphere is similar to the atmospheres of other large planets and contains helium and hydrogen. It also has trace amounts of water, ammonia, methane and other ices.
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  • What is the atmosphere like on Mars?

    Q: What is the atmosphere like on Mars?

    A: According to Space.com, the atmosphere on Mars is around 100 times thinner compared to that of the Earth's and is composed of about 95 percent carbon dioxide. However, the Martian atmosphere is still thick enough to sustain weather, winds and clouds.
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  • What is the composition of Mars' atmosphere?

    Q: What is the composition of Mars' atmosphere?

    A: The composition of Mars' atmosphere is 95.32 percent carbon dioxide, 2.7 percent nitrogen, 1.6 percent oxygen and 0.08 percent carbon monoxide. The remaining 0.3 percent is made up of various trace elements.
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  • Who discovered Mars?

    Q: Who discovered Mars?

    A: Because Mars with its famous red coloration is readily visible from Earth, it is unknown who first discovered it; NASA lists the planet as "known by the ancients." There are records of its existence as far back as ancient Egypt.
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  • Where is Venus located?

    Q: Where is Venus located?

    A: Venus is the second closest planet to the sun, after Mercury. It is part of the solar system, along with Earth and six other planets, which is located in the Milky Way galaxy.
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  • How much would a 100-pound person weigh on Saturn?

    Q: How much would a 100-pound person weigh on Saturn?

    A: A person weighing 100 pounds on Earth would weigh 107 pounds near the poles of Saturn and 91 pounds near Saturn's equator. This difference is due to centrifugal force offsetting some of the pull of gravity along the equator as the planet spins on its axis.
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  • Can Venus support life?

    Q: Can Venus support life?

    A: There is no evidence of life existing on Venus, and current scientific theories suggest that it is very unlikely that the planet can support life. The planet's high temperature and lack of water are cited as reasons for its hostility to harboring life.
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  • What are the nine planets in order?

    Q: What are the nine planets in order?

    A: The nine planets in order are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and, if it's still considered the ninth planet, Pluto. However, not only has Pluto been demoted to a dwarf planet by some astronomers, but its orbit is so eccentric that there are times when it's closer to the sun than Neptune.
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