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Planetary Science

Parent Category: Astronomy
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.
It spins to the right of the sun. Another viewpoint: The plane of the Sun's equator is tilted by just a few degrees to the plane of the Earth's orbit. So, the Earth revolves around the Sun roughly in the plane containing the Sun's equator. The Earth certainly does not orbit over the Poles of the...
There is no atmosphere in mercury
There is no such thing as up and down in space, so it just revolves  around the sun.
it means there is nice wether oh its way
January is the month of the Full Wolf Moon. It appeared when wolves  howled in hunger outside the villages. It is also known as the Old  Moon. To some Native American tribes, this was the Snow Moon, but  most applied that name to the next full Moon, in February.
  No. For a substance to be in liquid phase there need to be certain temperatures and pressures. The Moon hardly has any atmosphere therefore no pressure to sustain liquids, any liquid will turn to gas or solid.
A volcanic crater is a generally circular shaped depression.
    Not sure when this was posted but current models for 2007 are: Carla Ossa (swim & fashion), Jessiqa Pace (swim), Rachel Reynolds (swim), Karen Carreno (swim & fashion), Bree Condon (swim & fashion) and Angela Marcello (fashion)
On the 1st, 29th and 30th of November 1860.
I'm pretty sure there are more than just 2000 moons!!!! Our  universe is HUGE and continues to expand everyday, so there must be  like MILLIONS OF MOONS! I can't exactly give you a number of how  many moons exist in the universe, because that would take more than  5 billion years.  ...
Changing the amount of heat energy usually causes a temperature change. However, during the phase change, the temperature stays the same even though the heat energy changes. This energy is directed into changing the phase and not into raising the temperature. That's why the temperature of water...
Gravitation follows an inverse square law, so a gravitational fieldwhile eventually small enough to be negligible will never benon-existent.
It would be about 200,000,000 feet short from the moon.
This effect is caused by the atmosphere of the earth. The reason  for the orange colour is due to the scattering of light by the  atmosphere. When the moon is near the horizon, the moonlight must  pass through much more atmosphere than when the moon is directly  overhead. By the time the...
People have only been to the moon. However, we can still see other  planets using telescopes, satellites and probes.
About 470 million km or 292 million miles
Jupiter has rings, but they are not as visible as those of Saturn.
The moon always appears larger at full moon because it is closer to  Earth.
There is no starting point. We don't know where Pluto started  orbiting so we cannot determine the answer to this question.  However, we do know that it takes Pluto 248 years to orbit the sun.
If the planet was exactly in between Mars and Jupiter, it would  take 3645.029 days. 
  Asteroids were formed with our solar system and have not changed since then they are therefore about 4,600,000,000 years old.
asteroids which have some kind of difference are known as  differentiated asteroids and vice versa 
2000 miles ... then you will run into a black hole which will then take you to a portal that takes you back to your house....shortly after you will die from a hernia
Not only is it interesting, but it is also so we can, well, learn.
Jupiter actually has no land. It is gas. This makes it sort of hard  for someone to reach Jupiter to study it. If someone where to  travel to Jupiter, they wouldn't land.
The moon can rise between 6pm and 9pm.
Yes, otherwise we wouldn't be able to see them.
The Earth's rotation is, in fact, slowing. But not at a rate that  anyone would notice-unless one happens to be around in 150 million  years. Using eclipse data from as far back as 2000 BC, scientists  estimate that the period of Earth's rotation is growing by  approximately 1.7 milliseconds per...
"Other" intelligent life? I think we have yet to prove that there is ANY intelligent life on our planet.There was a button to improve the answer but this answer requires no improving.From the smallest cell in our diverse bio system things tend to work together for survival. Now when we think of...
Earth, Mercury, Venus, Mars, Jupiter, Saturn. There were six.
Light does not travel around ... light travels in a straight l ine ... unless there is a massive gravitational source. But this question is lacking an object in the sentence, so I really dont know what you are trying to ask.
The Earth belongs to the terrestrial planets(Mercury, Venus, Earth,  and Mars).
Perhaps. There are many myths surrounding the moon and Earth that  explain the Earth's tilt and its imperfect shape.
Solar eclipses happen somewhere around the world every 18 months orso. This means that over the course of a six year period you wouldhave the following distribution. Year 1 First Quarter, Year 2 ThirdQuarter, Year Four Second Quarter Year Six Fourth Quarter.Therefore solar eclipses can happen in any...
Jupiter is made up of 90% hydrogen. The remaining 10% is almost  completely made up of helium, although there are small traces of  other gases inside.
To calculate the velocity we would have to know the mass of the first object because we need it to find the force of gravity between the two bodies to then find out the net distance and time.
The Sun doesn't just emit heat and light, it produces a phenomenon  known as the solar wind. The thermal energy of the Sun's rays are  transferred to the solar winds, which are then transferred across  the solar system. However, as the solar wind gets farther and  farther away, the solar wind...
Jupiter rotates on its axis most rapidly out of all of the planets and is the closest, 9h 55m 30s for one full spin.
Almost all planets in the Solar system orbit the sun  anti-clockwise when viewed from the northern side, with the  exception of Venus, which orbits anti-clockwise. This is due to the  initial conditions of the gas cloud that was collapsing into the  planets while our Star system was just forming...
About 71% of Earth is cover in water.
Whenever it is at its perigee, i.e. its closest distance to Earth.  This happens every 27,55 days, a time interval known as an  Anomalistic Month. The moon perigee can vary between 356000km and  370000km, so the moon's apparent size varies accordingly. However,  you'd not be able to tell the...
One AU is 148,597,871 km, so 0.7 AU is 104,718,510 km. The velocity  of light and other electromagnetic radiations in free space is  299,792.458 km/second, so the time for the round trip is (2 *  104,718,510 / 299,792.458) seconds - or 698.6 seconds (11 minutes,  38.6 seconds.)
The moon's average distance to Earth is about 384400km. Its closest  approach to earth brings it to 356000km. So it never really is  50000km "closer to the Earth than usual" as long as you are  referring to its average distance by that.
  One tail is gas, and the other ice. The darker, colored tail is gas, and the white easy-to-see tail is ice.
About 1,350,000 miles per hour or 2,175,000 kilometers per hour
Or "face away," maybe? A comet's tail always points away from the Sun, because it is blown that direction by ions streaming out from the Sun (solar winds). So, whenever a comet is moving away from the Sun, its tail will stream ahead of it.
No. The moon is about 400 times smaller than the Sun, which is an  average star. Even the smallest stars are at least 50 times larger  than the moon in diameter.
it wont it just depends on what the horizon is made of
The Astronaut Class of 1978, otherwise known as the "Thirty-Five  New Guys," was NASA's first new group of astronauts since 1969.  This class was notable for many reasons, including having the first  African-American and first Asian-American astronauts. During  Women's History Month in March,...
It shines becuase it reflects off the sun. But during the day it is  blocked by the suns light
Earths atmosphere consists of 78.09% Nitrogen, 28.95% Oxygen and 1%  trace elements, mainly Argon. The martian atmosphere consists of  96% Carbon Dioxide, 1.9% Nitrogen, 1.9% Argon, with oxygen present  only as a trace element. Where you to inhale the martian atmosphere  you would suffocate. The...
All the Planets are called Mercury, Venus, Earth, Mars, Saturn, Uranus, Neptune and Pluto.      You can also have a easy method remembering planets and this is how it goes        My Very Easy Method Speeds Up Naming Planets.
A black dwarf would be the same size as a white dwarf: between  7,000 and 17,000 miles across.
To revolve around the sun, it takes 88 days. To rotate on its own  axis, it takes 58.6 days. One rotation takes 175.97 Earth  days
4 planets in our solar system are not solid, and are commonly referred to as the Gas Giants.
   66.7 million  miles    
because the earth is spinning and as it spins the sun appears to  move.
They're considered moons. If I'm mistaking, no moons create their own light. The Sun's rays reflect off of the "small revolving body" surface and create the light we see.
Yes, "Whenever the sun is shining in your town" is a fragment. It  does not complete the thought.    Some examples of a complete sentence would be:    Whenever the sun is shining in your town, the children come out  to play.  Whenever the sun is shining in your town, the road is too hot...
Uranuim, it an element and a planet. Uranuim is a chemical element  with symbol U and atomic number 92. it is a silvery-white metal in  the actinide series of the periodic table.
it may cause an earth quake
A penumbral lunar eclipse takes place when the Moon moves through  the faint, outer part of the Earth's shadow.
Jupiter is Gaseous Planet so no Lander/Rover can land on Jupiter.Voyager is basically a Spacecraft and spacecraft is used as flybyaround a planet or object. It had a flyby of Jupiter in1979. It is now outside the heliopause - the "bubble" of plasmacoming from the sun otherwise known as solar wind....
Neptune's and Earth's orbits place them at different distances at different times. The approximate minimum distance between the two is about 4.3 billion kilometers, and the approximate maximum distance between the two is about 4.7 billion kilometers.
Triton, proteus, Nereid, Larissa, and Galatea, according to  diameter
The horizon (or skyline) is the apparent line that separates earth  from sky, the line that divides all visible directions into two  categories:
Most Asteroids are made of Carbon-based rock. Some though are made of iron and nickel.
If you've ever heard of the expression "once in a blue moon", you would probably refer to it as being "rare" or "unusual", so if you were born on a blue moon (which I have just found out I was) it means you're pretty unique!
Quasars are some of the most distant and luminous bodies we can  observe. Since we measure them to be incredibly far from our own  galaxy, in the order of billions of light-years, astronomers  believe that they are several billions of years old as their light  would have taken that long to...
Venus will also have an eclipse
If by "causes" you mean what caused Earth to form - Earth was  formed from the left over stuff that formed Sun. A nebula of dust  and rocks was pulled together by its own gravity and formed the  sun, but not all of it was pulled to the center of the mass and the  residual stuff began to orbit...
Anything which is part of the normal landscape or sky (trees,  hills, birds,clouds, planes) usually looks smaller when they're  near the horizon. The reason for this is simple: stuff near the  horizon is generally more distant. Just take trees in the  landscape, or a road disappearing in the...
  The sun has a  magnetic field that gets twisted around inside the sun as it spins.  There are places on the sun where this magnetic field rises up from  below the sun's surface and pokes through, creating  sunspots.Sunspots are magnetic and often have  a north and south pole like a magnet...
There  are about 2,500 stars visible to the naked eye at any one point at  any one time on the Earth, and 5,800-8,000 total visible stars. But  this is a very tiny fraction of the stars the Milky Way is thought  to have! Astronomers estimate that there are 200 billion to 400  billion stars...