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.
Total questions 119000
ID1649589561
wrote the first answer to Why are objects in the solar system different from eachother 55 minutes ago
ID1143844812
asked The temperature of the moons surface varies greatly from day to night because the moon has what and said it was different from Where might whater be found on the moon 26 May 2012 13:15
ID1385786751
wrote the first answer to How big is canis majoris star 26 May 2012 12:38
ID1168878800
wrote the first answer to What pieces of other planets have been found on earth 26 May 2012 12:25
Earth is the "third rock from the Sun".
Popularity: 2 • Tools: Recategorize
Mars rotates on its axis in 24.6 hours. So the cycles of light and dark are very similar to those on the earth. One half of the...
Popularity: 2 • Tools: Recategorize
You can Google the names of our eight planets as well as two dwarf planets and you'll receive detailed picture/s of most of them.
Popularity: 2 • Tools: Recategorize
Pluto. Pluto is now considered a part of the Kuiper Belt. It is a dwarf planet. Look at "Pluto" on Wikipedia.com
Popularity: 2 • Tools: Recategorize
No. Venus is #6 in mass, after Earth. The four gas giant planets are 1 through 4.
Popularity: 2 • Tools: Recategorize
Assuming it was possible to switch two objects of such mass in a time period of 0: If the new sun had a larger radius, either...
Popularity: 2 • Tools: Recategorize
1. Moon has no atmosphere 2. Moon's rotation means "day" and "night" each last two weeks.
Popularity: 2 • Tools: Recategorize
No, but your weight does.
Popularity: 2 • Tools: Recategorize
Earth is continuously rotating on its axis around the sun and it is a sphere. The part of Earth that comes in front of sun gets...
Popularity: 2 • Tools: Recategorize
Uranus contains Methane in its atmosphere which gives it a aquamarine or cyan colour.
Popularity: 2 • Tools: Recategorize
because a scientist
Popularity: 2 • Tools: Recategorize
The orbit of the Moon has a slight tilt in respect to Earth's orbit. So in order for an eclipse to happen a perfect alignment...
Popularity: 2 • Tools: Recategorize
The planets orbit the Sun. The Sun is at the center of our solar system and does not move.
Popularity: 2 • Tools: Recategorize
14 main stars. 76 "bayer" stars
Popularity: 2 • Tools: Recategorize
any planet between Mercury and Jupiter Mercury,Venus,Earth,Mars,and maybe Jupiter
Popularity: 2 • Tools: Recategorize
Earth
Popularity: 2 • Tools: Recategorize
It's not... Mercury is smaller than Earth.
Popularity: 2 • Tools: Recategorize
The moon's period of rotation on its axis is precisely synchronized with its period of orbital revolution around the earth. Both...
Popularity: 2 • Tools: Recategorize
It would depend on where each planet was in its orbit. At a minimum, the two planets are about 1,633,310,000 km apart, and a...
Popularity: 2 • Tools: Recategorize
It is likely that many stars within a globular cluster may have planets.
Popularity: 2 • Tools: Recategorize
chuck norris roundhouse liked a star and the universe was born
Popularity: 2 • Tools: Recategorize
It's most probably Venus. As it orbits the sun closer than earth it either follows or precedes the sun, and as such it is visible...
Popularity: 2 • Tools: Recategorize
A cosmologist
Popularity: 2 • Tools: Recategorize
noones quite sure yet about if there is life on other planets because there is just no scientific proof of that yet. It would...
Popularity: 2 • Tools: Recategorize
Our very own planet "EARTH"
Popularity: 2 • Tools: Recategorize
No. The escape velocity of a black hole is greater than the speed of light.
Popularity: 2 • Tools: Recategorize
It is a star, or a gas giant.
Popularity: 2 • Tools: Recategorize
Voyager 1 and 2 were launched in 1977, and explored the outer planets during the 70's and 80's. They are still partially...
Popularity: 2 • Tools: Recategorize
Modern geologists and geophysicists consider the age of the Earth to be around 4.54 billion years old. This age has been...
Popularity: 2 • Tools: Recategorize
They are all approximately circle and in the same plane, but when you look further, they are actually elliptical and off centre...
Popularity: 2 • Tools: Recategorize
Popularity: 2 • Tools: Recategorize • Needs Answer
It depends how fast you are going. The distance is 28.5 million miles at its shortest distance and 43 million miles at its...
Popularity: 2 • Tools: Recategorize
Jupiter duh its called the largest planet
Popularity: 2 • Tools: Recategorize
Telescopes and binoculars, although a lot can be seen with an unaided eye.
Popularity: 2 • Tools: Recategorize
the hottest star in the space is the rigel ..
Popularity: 2 • Tools: Recategorize
Any gas can be explosive under pressure, but there are a few exceptional ones: Hydrogen:Responsible for the Hindenburg disaster ...
Popularity: 2 • Tools: Recategorize
All bigger that Earth All gas giants All have more than one moon All have rings
Popularity: 2 • Tools: Recategorize
pink:D
Popularity: 2 • Tools: Recategorize
Yes. Its atmosphere is much less dense than the Earth's, but still present.
Popularity: 2 • Tools: Recategorize
clouds and the atmosphere
Popularity: 2 • Tools: Recategorize
planets with lots of gas.
Popularity: 2 • Tools: Recategorize
Mar's average temperature is -80 degrees Fahrenheit
Popularity: 2 • Tools: Recategorize
Mercury Venus Earth Mars Jupiter Saturn
Popularity: 2 • Tools: Recategorize
Popularity: 2 • Tools: Recategorize • Needs Answer
Earth The sidereal rotational period of Mars is 1.025 957 days (ie 24.62296 hours)The sidereal rotational period of Earth is...
Popularity: 2 • Tools: Recategorize
Mercury is. Though it is not the hottest planet in our solar system - Venus is.
Popularity: 2 • Tools: Recategorize
Earth strangly well we need t.v. right
Popularity: 2 • Tools: Recategorize
It swallows up light. Does not allow light to pass through, eating up anything in its path.
Popularity: 2 • Tools: Recategorize
A space station and many satellites.
Popularity: 2 • Tools: Recategorize
Only Venus and Earth have a greenhouse effect because they have a substantial atmosphere. Venus actually has a runaway greenhouse...
Popularity: 2 • Tools: Recategorize
Uranus. Pluto's approximate distance from the sun is 39.5 AU while Uranus's approximate distance from the sun is 19.2 AU.
Popularity: 2 • Tools: Recategorize
Jupiter has 63 moons. Saturn has 62 moons. These numbers keep increasing as new observations identify smaller moons that hadn't...
Popularity: 2 • Tools: Recategorize
Well, we have light, the sun, water, the atmosphere, and climate. We need those five things for life. Without even one of those...
Popularity: 2 • Tools: Recategorize
Jupiter is the fifth planet from the Sun counting outwards. Starting at the outside and counting in (which I think is what you...
Popularity: 2 • Tools: Recategorize
Well, it's not just the planets. Our Solar System consists of the sun, the planets, an asteroid belt, and all the planets' moons....
Popularity: 2 • Tools: Recategorize
During a lunar eclipse the moon is on the opposite side of the Earth to that of the sun. As such light from the Sun is passing...
Popularity: 2 • Tools: Recategorize
It has to do with gods. Moon is the english version luna who we all know is a god.
Popularity: 2 • Tools: Recategorize
Yes, all the planets which have their axis of rotation at right angles(or close to 90`) to the orbital plane will experience...
Popularity: 2 • Tools: Recategorize
Among the three its Mars, but in the solar system it is Mercury.
Popularity: 2 • Tools: Recategorize
No, Venus is the hottest.
Popularity: 2 • Tools: Recategorize
The Earth's rotation does have an impact on the moon's orbit, so if the Earth were spinning in the opposite direction it would...
Popularity: 2 • Tools: Recategorize
Water is found at the poles of Mars in the form of ice. This has only been confirmed recently. As for liquid water, there is...
Popularity: 2 • Tools: Recategorize
Shooting stars are actually objects burning in the Earth's atmosphere. The name "shooting star" originates from ancient times...
Popularity: 2 • Tools: Recategorize
Virtually all of the known planets are near a star. Occasionally, a rougue free floating one will be sighted, but they are rare...
Popularity: 2 • Tools: Recategorize
The question contains the answer 100,000. "if each of these star clusters contains 100,000 stars, how many stars exist in these...
Popularity: 2 • Tools: Recategorize
INNER PLANETS- Rocky Surface Inside the Meteor Belt Mercury, Venus, Earth, and Mars Thin closer to the sun than outer planets...
Popularity: 2 • Tools: Recategorize
The Sun is anything BUT "stable"; it is a million-mile wide ball of nuclear explosions in which the outward force of the...
Popularity: 2 • Tools: Recategorize
Gravity is directly related to mass. A planet with a smaller mass than that of Earth would have less gravity, a planet more...
Popularity: 2 • Tools: Recategorize
Gravity is caused by mass, so the more mass, the more gravity. The Sun has 99.5% of all the mass in the solar system. So the...
Popularity: 2 • Tools: Recategorize
The largest moon in our solar system is Ganymede, which orbits Jupiter.
Popularity: 2 • Tools: Recategorize
All light comes from the Sun. If you go outside in the daytime, you're seeing sunlight directly. If you are out after dark, you...
Popularity: 2 • Tools: Recategorize
We only have 8 planets in our solar system, all named after gods. Pandora was not a goddess, but she gave her name to one of...
Popularity: 2 • Tools: Recategorize
A white dwarf's mass is comparable to that of the Sun yet its volume is comparable to that of the Earth,
Popularity: 2 • Tools: Recategorize
Eccentricity, geocentric model, heliocentric model, Kepler's second and third laws, elliptical orbits, and Newtons gravitation
Popularity: 2 • Tools: Recategorize
Of the eight planets in the Solar System, the only two that have no moons are Mercury and Venus. Earth has one moon, Mars two,...
Popularity: 2 • Tools: Recategorize
The sun's volume is 1,520,000 times bigger than that of Venus.The sun's diameter is 114.9 times bigger than that of Venus.
Popularity: 2 • Tools: Recategorize
because the sun is so bright that it covers it up!! jk idk
Popularity: 2 • Tools: Recategorize
They can bring water to dry worlds. That's NOT true at all!
Popularity: 2 • Tools: Recategorize
The next good total lunar eclipse visible from the UK will be on September 28, 2015. ...
Popularity: 2 • Tools: Recategorize