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Parent Category: Science
The scientific study of celestial bodies. Find questions on Constellations, Planets and more.
Yes, nuclear bombs can destroy most if not all human, animal, andplant life, and contaminate water supplies.
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...
Mercury's atmosphere contains small amounts of hydrogen,helium, and oxygen. It also has even tinier amounts of sodium,potassium, calcium, and magnesium. Some of the gas particles comefrom the solar wind. Others are made by radioactive decay or whenmicrometeorites smash into the surface.
There is no such thing as up and down in space, so it just revolvesaround the sun.
It doesn't mean anything in particular. The Moon is low when it isrising or setting, and always looks bigger when it's near thehorizon. This is called the Moon illusion.
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.
Pluto's temperature varies with its distance from the Sun. We thinkthe maximum daytime temperature is about -223 degrees C.
It's not the only reason, but the same force will produce lessacceleration in a body with more inertia.
As the Moon moves in its orbit around the sun, our view of  the side illuminated by the Sun changes. Let us work through the  cycle, starting with the full Moon. At full  Moon, the moon rises at sunset and sets at sunrise.  At 3rd quarter, the moon rises at midnight and sets  at noon.
The Moon always keeps the same side facing the Earth. So, whatever direction you name, there is some place on the Moon from which the Earth appears in that direction, and if the observer doesn't move to a different place on the Moon, then the Earth doesn't move either. It's always in the same...
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.  ...
Feeling strange because you are weightless
The inflationary hypothesis was developed in the 1980s by  physicists Alan Guth and Andrei Linde. Inflation explains the  origin of the large-scale structure of the cosmos. Quantum  fluctuations in the microscopic inflationary region, magnified to  cosmic size, become the seeds for the growth of...
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.
First you have to prove a parallel universe exists. It is theorised that they exist, but it is not proven. If they do exist, it is doubtful we could ever go there. We are designed for this one, for the physical laws the operate here and if we did go there, we probably wouldn't be able to survive. A...
Since the universe goes on forever (at least that's what we know of  it), we cannot determine the star that is furthest away. It is  impossible. However, the furthest star that we can see from Earth  is the star Deneb.
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...
Not sure how scientific you want the answer to be but the first 3 things that come to this uneducated mind of mine are: 1. They both orbit another entity 2. They are both spherical in shape 3. Both have mass These 3 properties are true of many things but they technically answer the question.
The Pano mirror lens is a great tool for taking 360° panoramic photos with the minimum of fuss: 1- Mount the Pano Pro unit and your camera onto your tripod, pointing vertically upwards, using the supplied quick-release adapter kit. 2- Focus the camera on the mirror and take one shot. 3-Use the...
5.88 x 1014 miles = 1 ly. 1 mile = 1/5.88 x 1014 ly. 5.417 x 1014 miles = 5.417 x 1014 /5.88 x 1014 ly =0.9213 ly
24,902 miles (40,075 kilometers) at the equator and 24,860 miles (40,008 kilometers) around through the poles.
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.
(circumpolar - our view of the constellation on Earth)  Constellations are circumpolar because they are only how we view  them on Earth. The constellations would be different on another  planet or at another viewing point. They are circumpolar since they  are at different distances in relation...
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. 
Perigee means minimum distance from the earth, so it varies with  the object and its orbit.
  Asteroids were formed with our solar system and have not changed since then they are therefore about 4,600,000,000 years old.
The instrument used by astronomers to study light given off by stars is called a telescope, but one may add to the telescope an instrument called a spectrometer if you want to split the light into its components and using this determine what the stars are made of.
asteroids which have some kind of difference are known as  differentiated asteroids and vice versa 
Interesting question.. so far I have only come up with a few things of which I am not 100% sure about. + Earthquakes + Earth's orbit around the sun + The internet?
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
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...
The Sun produces energy by the nuclear fusion of hydrogen into  helium in its core. What that means is that, since there is a huge  amount of hydrogen in the core, these atoms stick together and fuse  into a helium atom. This energy is then radiated out from the core  and moves across the solar...
Earth, Mercury, Venus, Mars, Jupiter, Saturn. There were six.
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.
The Moon's orbital plane is tilted about 5 degrees to the ecliptic  (the Earth's orbital plane), so the Sun, the Moon and Earth do not  perfectly align every new moon or full moon. We can have an eclipse  only if the alignment of the three bodies happens along the  intersection of the two...
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...
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.
Refracting is more of a direct look at the star, but it doesn't  show it very closely. Reflecting uses mirror's and can most of the  time give you a better view than a refracting. I own both and in my  opinion reflecting works better.
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...
All constellations have stars of all temperatures. Libra is no  exception to that. So there isn't some specific temperature about  the stars in it.
Libra is a constellation, a specific part of the celestial sphere.  So it is not a physical entity that could have a temperature. If  you are referring to the stars that can be found within its  boundaries, they can be any temperature that applies to a star  (anything between 3000K and 20000K)
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.)
No, it is not a 'real' galaxy, merely one that exists inside the movie world. It is based upon Science Fiction, and you will not be able to travel to it.
A "Blue Moon" hence the phrase: "once in a blue moon" meaning very seldom.
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.
Well, Depending on you question.: Either 1: The Photographer who works at PlayBoy Magazine. or 2: Astronomer. A man works looks at the stars and moons and planet in the universe.
  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
Yes. Because Earth spins around the sun and rotates on its axis, different parts of the world face the sun at a different time, causing day and night. +++++++ Answer ++++++++++ Your question is about the earth's orbit causing night and day. The answer for that is NO. It's the earth's rotation that...
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,...
Some of the main ones are: Telescopes (optical). Radio telescopes. Spectroscopes. Computers are used a lot, but they aren't really "instruments".Primarily, various kinds of telescopes.
It shines becuase it reflects off the sun. But during the day it is  blocked by the suns light
The stars comprising Cassiopeia are in the same positions (with minute shifts unnoticeable without advanced telescopes and measuring equipment) now as they have been for thousands of years- If someone decides to redraw the borders they can do that whenever they want but it will not affect the...
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...
A black dwarf would be the same size as a white dwarf: between  7,000 and 17,000 miles across.
The Moon's perigee is now about 363,104 km but it is falling constanly at the rate of a few centemeters per year.
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
On 30 january, 2010, the moon closest to earth in recorded history.
Earth's axis of rotation is 23.5 degrees.
Constellations are stable (at least in our lifetimes and that of humanity). They change so slowly as to be unnoticeable.
   66.7 million  miles    
because the earth is spinning and as it spins the sun appears to  move.