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Dwarf Planet Pluto
Planet Earth
Planet Jupiter
Planet Venus
Planet Saturn
Planet Mercury
Earth Sciences
Planet Neptune

Planetary Science

Planetary Science is the study of Planets and the Solar System, a combination of Astronomy and Earth Sciences. Find questions about the different planets and more.

Asked in Planet Jupiter, Planetary Science, The Moon

What is the closest planet near Earth's moon?

Well, it is obviously Earth. But if you meant the nearest planet (excluding Earth), it varies from time to time; at their closest approaches Venus is around 45,000,000 km away to the Earth and Mars is around 80,000,000 km away from the Earth. But they aren't always or even usually at their closest approach to Earth. Whether Earth and the Moon are closer to Venus or to Mars depends on the three planets' relative positions in their orbits. When Mars is...
Asked in Planetary Science

What degree is the earth's tilt?

Earth spins around on an imaginary line called an axis that runs from the north pole, through the center of the Earth, and on to the south pole. When we say that "Earth has an axial tilt of 23.5 degrees," we are comparing the direction of the axis to another imaginary line that is perpendicular to--or, at a right angle to--the ecliptic plane. The ecliptic plane is an imaginary disc that extends from the equator of the Sun, out to the...
Asked in Astronomy, Planetary Science

Dusty and gaseous material orbiting a star is called what?

It is most likely to be the stars jet trail of burned out gas which then began to orbit the star itself because of its immense mass. ...
Asked in Planetary Science, Planet Mars, Planet Mercury

List the planets in order from the sun?

These are the 8 planets listed in order from the sun are, 1) Mercury 2) Venus 3) Earth 4) Mars 5) Jupiter 6) Saturn 7) Uranus 8) Neptune Pluto is no longer a planet, it is a dwarf planet. ...
Asked in Planetary Science, The Moon, Sailor Moon

How was the moon created?

Theories of the Origin of the Moon After years of research, studying gamma rays and rock samples from the Earth and the Moon, it is generally accepted that the ages of the Earth and the Moon are the same. There are several theories on its formation. IMPACT : One theory is that it was formed from the Earth's crust, following the impact of a large (Mars-sized) asteroid. A long string of rocky fragments were blown out from the Earth in the form of...
Asked in Religion & Spirituality, Planetary Science, Planet Earth

Does the discovery of life on other planets contradict with religions?

No, if life is discovered on other planets then it will not contradict with religions. Below are opinions from view points of different religions: A. In the Islamic religion: It is mentioned in Quran, Muslim's holy book, that God (the Creator) is the Lord of all worlds. God says in Quran that God is the Lord of what we know and what we don't. God says in Quran that we have known only little. Accordingly, nothing in Quran or Islam religions contradicts with the possibility...
Asked in Planetary Science, Planet Mars

How long does it take to get to Mars from Earth?

Unmanned probes from Earth can take from 7 months to two years to reach Mars, depending on when they are launched and how fast they can travel. The direct distance can vary from about 58 million kilometers to more than 400 million kilometers. The distance is at least 36 million miles (58 million km). So the minimum time would be: At 70 MPH -- 56 years At 500 MPH -- 8 years At Mach 1 (0.34 km/sec) -- 5.4 years (5 years, 5 months) At...
Asked in Planetary Science, The Moon, Stars

What is the circle of light around the sun called?

The circle of light around the sun is called a Corona. The corona can usually only be seen during a total solar eclipse. When this happens it can be seen as an irregularly shaped glow surrounding the moon. ...
Asked in Science, Planetary Science, The Solar System

What are the names of the planets in our solar system?

Names of the Planets Mercury - named after the Roman mythological counterpart of Hermes, the Greek god of messengers, commerce, thieves, and sports. Named as such because of the speed at which it revolves around the Sun. Venus - named after the Roman mythological counterpart of Aphrodite, the Greek goddess of love and beauty. Earth (also known by its Latin name, "Terra") - named after the titan of the Earth from Greek mythology. Mars - named after the Roman mythological counterpart of Ares, the Greek god...
Asked in Clouds, Earth Sciences, Planetary Science, Planet Mars

What is Mars made of?

Mars is made of rock and iron oxides. It's surface is covered in mountains, volcanoes, valleys, ice caps and dried up river beds. Mars is also very dry like a desert. It is also red because of the iron oxide in the pulverized rock dust. Mars is a planet with a thin atmosphere, having surface features reminiscent both of the impact craters of the Moon and the volcanoes, deserts and polar ice caps of Earth. ...
Asked in Astronomy, Planetary Science

What does the earth's gravitational attraction prevent gases from doing?

The Earth's gravitational attraction prevents gasses from escaping into outer space. ...
Asked in Astronomy, Space Travel and Exploration, Planetary Science, Constellations

What are uses of constellation?

Constellations are used as a way of mapping surrounding space so that's its easier for us to find certain planets/stars alot easier. Also in history these constellations have being used for astrology which is suposerly a way of reading ones future, hope this helps ...
Asked in Science, Geology, Planetary Science

How do crater counts tell us the age of a surface?

The more craters a surface in space has (e.g. moon's surface), the older it is likely to be. A surface which has been around longer will have been exposed to more impacts from objects such as meteorites. In addition, if you are able to get figures for the rate of crater production, it is possible to use the number of craters to give an quantitative estimate of the age of the surface. ...
Asked in Astronomy, Chemistry, Planetary Science

What are the four orbital shapes?

We can come up with only three: -- hyperbolic -- parabolic -- elliptical (including circular, a special case of elliptical) Circles, ellipses, parabolas and hyperbolas are all conic sections, the intersection of a plane with a right-circular cone. Orbitals in quantum chemistry have shapes that are spheres for s-orbitals, dumbbells for p-orbitals, and different types of d-orbital are either pairs of crossed dumbbells, or a dumbbell with a central collar. f-orbitals have yet more complex shapes, but they are not usually considered in textbooks. In physics, p and...
Asked in Planetary Science, The Solar System

How many planets are there in our solar system?

There are a total of 13 known planets in our solar system: There are 8 major planets in our solar system. Since the recent re-definition of 'planet', Pluto is a dwarf planet (along with 4 others in that classification). The 8 major planets in the solar system: 1. Mercury 2. Venus 3. Earth 4. Mars 5. Jupiter 6. Saturn 7. Uranus 8. Neptune The 5 dwarf planets: 1. Ceres (a large asteroid) 2. Pluto 3. Haumea (Kuiper Belt Object) 4. Makemake (Kuiper Belt Object) 5. Eris (Kuiper Belt Object) Pluto was designated a dwarf...
Asked in Planetary Science, Exoplanets, The Solar System

How many Planets are there?

There are 8 major planets, and 5 dwarf planets, in our solar system. There are also about a half dozen bodies that may be dwarf planets, though this status has not yet been confirmed. and more than a hundred more that may be considered in the future. Outside of our Solar System, there are billions. These are called exoplanets. In addition to the eight planets in our solar system, due to new equipment and new techniques, new planets are being found in...
Asked in Planetary Science, The Solar System

How many moons are there in the solar system?

There are 178 known moons in the Solar System. The planet which has the most natural satellites is Jupiter with 66. There are also 104 asteroid moons and as many as 58 satellites of potential dwarf planet candidates. Major Planets (171) Mercury does not have any natural satellites (moons) Venus does not have any natural satellites (moons). Earth has 1 natural satellite (moon) called 'The Moon' or Luna (asteroid Cruithne orbits the Sun in a 1:1 orbital resonance with Earth) Mars has 2 natural satellites (moons) Jupiter...
Asked in Astronomy, Planetary Science, The Moon

Why does the moon look orange when it rises?

The Moon appears orange-ish when it rises for the same reason the Sun looks redder at sunset -- the Earth's atmosphere scatters the shorter, bluer wavelengths of light and more of the reddish light makes it to your eye. At moonrise, you are seeing the moon through more of the Earth's atmosphere than when the moon is overhead, and more of the light at red wavelengths makes it through the atmosphere to your eye. ...
Asked in Planetary Science, Betelgeuse

How far from earth to betelgeuse in miles?

Betelgeuse is 640 light-years away from the Earth. 1 light-year is the distance traveled by light in 1 year. speed of light = 3 x 108 meters per second So, 1 ly = 3 x 108 x 365 x 24 x 60 x 60 = 9.46 x 1015 meters 640 light-years = 640 x 9.46 x 1015 = 6.05 x 1018 meters 1 meter = 0.621 x 10-3 miles 640 light-years = 6.05 x 1018 x 0.621 x 10-3 = 3.76...
Asked in Planetary Science, Planet Mars

What are two reasons why mars is a cold planet?

1. Mars is considerably farther from the Sun than Earth and therefore receives less sunlight to warm it. 2. It's atmosphere is very thin, so it cannot produce a substantial greenhouse effect and quickly loses the heat it gains in the daytime at night becaus the atmosphere is too thin to hold onto it. ...
Asked in Astronomy, Planetary Science, Stars

What angular resolution would you need to see the Sun and Jupiter as distinct points of light if you were looking at it from 15 light years away?

Great question to chew on ! And I think I can work it out, at least to an order-of-magnitude approximation. Radius of Jupiter's orbit is around 5 AU = 5 x 93 million = 465,000,000 miles. 15 light years = 15 x 5.8787 x 1012 = 8.818 x 1013 miles (Tangent)-1 of (5 AU / 15 LY) = 0.000302 degree = roughly like 1.09 arc-second. There's a rule for the resolution you need in order to completely resolve two sources that subtend a given angle,...
Asked in Astronomy, Planetary Science, Solar Power

Why does the sun never run out of heat energy?

"Never" is a big word... The Sun has shone for a long time, and it will continue shining for a long time, but it will eventually run out of fuel. ...
Asked in Astronomy, Planetary Science, Gravity

Find the change in the force of gravity between two planets when the distance between them is increased by a factor of five?

The force of gravity varies as the inverse square of the distance, so if the distance were increased by a factor of five, the force between them would decrease by a factor of five squared, or 25. So the new force would be 4% of the original force. ...
Asked in Astronomy, Planetary Science, The Moon

What is the moons lunar temperature?

The mean surface temperature during the day is 107° C (226.6° F) At night that temperature is negative and drops to -153° C (-243.4 F) The maximum surface temperature is 123° C (253.4° F) The minimum surface temperature is -233° C (-387.4 F) ...
Asked in Astronomy, Planetary Science, Isaac Newton

Did Isaac newton discover that the solar system is held together by gravity?

Yes, it was Sir Isaac Newton, during the year 1666 when, according to his journals, an apple fell on his head while he was sitting under a tree. Newton's major contribution was to describe gravity as an inverse-square law and he produced a formula that allows the force between two bodies to be calculated if the distance and the two masses are known. It was already known that an inverse-square law explained the elliptical orbits of the planets, but Newton's improvement allowed the...