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Planet Venus
The 2nd planet from the Sun in our solar system. Excluding the moon, it is the brightest natural object in the night sky.
2,020 Questions
The gravitational force between two objects is determined by their masses and the distance between them. Venus is closer to the sun than Earth, so the gravitational force between Venus and the sun is greater. Additionally, Venus has a similar mass to Earth, so the gravitational force between Venus and the sun is further influenced by the mass of Venus.
Is Venus the one humans are most likely to colonize?
Venus's atmosphere is significantly hotter and denser than Earth's and not favorable for humans.
Mars is the most likely planet humans will travel to next and perhaps colonize. The environment there is more temperate than that of Venus.
Earth has wind, and water, and tectonic plates. This causes impact craters to be destroyed relatively quickly, over the course of hundreds of thousands of years.
Jupiter is a gas giant, and has no crust. Since there's nothing for the meteor to crash into, there's no impact crater at all!
As for Venus, it actually does have a large number of impact craters, they just can't be seen easily underneath the thick atmosphere. However, Venus does have some volcanic activity which damages the craters. This process is so slow that it takes about 500 million years to destroy them all.
Mars, on the other hand, has no processes that destroy craters other than a very thin atmosphere with a little bit of wind. Therefore, the craters there last far longer. In addition, Mars is nearer to the asteroid belt, and is more likely to attract meteors from there than Earth and Venus.
Venus has been known since prehistoric times. It is the brightest object in the sky except for the Sun and the Moon. Like Mercury, it was popularly thought to be two separate bodies: Eosphorus as the morning star and Hesperus as the evening star, but the Greek astronomers knew better. (Venus's apparition as the morning star is also sometimes called Lucifer.) Since Venus is an inferior planet, it shows phases when viewed with a telescope from the perspective of Earth. Galileo's observation of this phenomenon was important evidence in favor of Copernicus's heliocentric theory of the solar system. Venera 9 surface photo
The first spacecraft to visit Venus was Mariner 2 in 1962. It was subsequently visited by many others (more than 20 in all so far), including Pioneer Venus and the Soviet Venera 7 the first spacecraft to land on another planet, and Venera 9 which returned the first photographs of the surface. The first orbiter, the US spacecraft Magellan Magellan radar map (false color)
produced detailed maps of Venus' surface using radar. ESA's Venus Express is now in orbit with a large variety of instruments. Venus' rotation is somewhat unusual in that it is both very slow (243 Earth days per Venus day, slightly longer than Venus' year) and retrograde. In addition, the periods of Venus' rotation and of its orbit are synchronized such that it always presents the same face toward Earth when the two planets are at their closest approach. Whether this is a resonance effect or merely a coincidence is not known. Venus is sometimes regarded as Earth's sister planet. In some ways they are very similar: * Venus is only slightly smaller than Earth (95% of Earth's diameter, 80% of Earth's mass). * Both have few craters indicating relatively young surfaces. * Their densities and chemical compositions are similar. Because of these similarities, it was thought that below its dense clouds Venus might be very Earthlike and might even have life. But, unfortunately, more detailed study of Venus reveals that in many important ways it is radically different from Earth. It may be the least hospitable place for life in the solar system. Venus in visible light from Galileo
The pressure of Venus' atmosphere at the surface is 90 atmospheres (about the same as the pressure at a depth of 1 km in Earth's oceans). It is composed mostly of carbon dioxide. There are several layers of clouds many kilometers thick composed of sulfuric acid. These clouds completely obscure our view of the surface. This dense atmosphere produces a run-away greenhouse effect that raises Venus' surface temperature by about 400 degrees to over 740 K (hot enough to melt lead). Venus' surface is actually hotter than Mercury's despite being nearly twice as far from the Sun. Venus in ultra-violet light
There are strong (350 kph) winds at the cloud tops but winds at the surface are very slow, no more than a few kilometers per hour. Venus probably once had large amounts of water like Earth but it all boiled away. Venus is now quite dry. Earth would have suffered the same fate had it been just a little closer to the Sun. We may learn a lot about Earth by learning why the basically similar Venus turned out so differently. Most of Venus' surface consists of gently rolling plains with little relief. There are also several broad depressions: Atalanta Planitia, Guinevere Planitia, Lavinia Planitia. There two large highland areas: Ishtar Terra in the northern hemisphere (about the size of Australia) and Aphrodite Terra along the equator (about the size of South America). The interior of Ishtar consists mainly of a high plateau, Lakshmi Planum, which is surrounded by the highest mountains on Venus including the enormous Maxwell Montes. Sif Mons (Magellan radar)
Data from Magellan's imaging radar shows that much of the surface of Venus is covered by lava flows. There are several large shield volcanoes (similar to Hawaii or Olympus Mons) such as Sif Mons. Recently announced findings indicate that Venus is still volcanically active, but only in a few hot spots; for the most part it has been geologically rather quiet for the past few hundred million years. There are no small craters on Venus. It seems that small meteoroids burn up in Venus' dense atmosphere before reaching the surface. Craters on Venus seem to come in bunches indicating that large meteoroids that do reach the surface usually break up in the atmosphere. The oldest terrains on Venus seem to be about 800 million years old. Extensive volcanism at that time wiped out the earlier surface including any large craters from early in Venus' history. Coronae
Pancake volcanoes
Magellan's images show a wide variety of interesting and unique features including pancake volcanoes (left) which seem to be eruptions of very thick lava and coronae (right) which seem to be collapsed domes over large magma chambers. The interior of Venus is probably very similar to that of Earth: an iron core about 3000 km in radius, a molten rocky mantle comprising the majority of the planet. Recent results from the Magellan gravity data indicate that Venus' crust is stronger and thicker than had previously been assumed. Like Earth, convection in the mantle produces stress on the surface. However on Venus the stress is relieved in many relatively small regions instead of being concentrated at the boundaries of large plates as is the case on Earth. Venus has no magnetic field, perhaps because of its slow rotation. Venus has no satellites, and thereby hangs a tale. Venus is usually visible with the unaided eye. Sometimes (inaccurately) referred to as the "morning star" or the "evening star", it is by far the brightest "star" in the sky. There are several Web sites that show the current position of Venus (and the other planets) in the sky. More detailed and customized charts can be created with a planetarium program. On June 8 2004, Venus passed directly between the Earth and the Sun, appearing as a large black dot travelling across the Sun's disk. This event is known as a "transit of Venus" and is very rare: the last one was in 1882, the next one is in 2012 but after than you'll have to wait until 2117. While no longer of great scientific importance as it was in the past, this event was the impetus for a major journey for many amateur astronomers
Gravity is greater at the what?
Gravity increases from about 9.780 m/s2 at the Equator to about 9.832 m/s2 at the poles. This means an object will weigh about 0.5% more at the poles than at the Equator.
Yes it does. All objects have gravity but the amount of gravity depends on the mass of the object.
It takes 140 days more for the earth to go around the sun than Venus!
Bright and Morning Star By Richard Wright conflict?
In "Bright and Morning Star" by Richard Wright, the conflict arises from the protagonist's internal struggle with her loyalty to her son and her loyalty to the Communist Party. This conflict is exacerbated by the oppressive racism and violence faced by African Americans in the South during this time period. The protagonist's ultimate decision to choose her son over the Party highlights the theme of familial bonds triumphing over political ideology.
What are small amounts of gravity called?
Small amounts of gravity are called microgravity. It is experienced by objects in free fall or in orbit around a larger body, such as Earth. This condition results in a state where gravitational forces are significantly reduced, creating a sensation of weightlessness.
If you are 10 on earth how old would you be on venus?
In the time it takes Earth to go around the Sun 10 times, Venus goes around the Sun a little over 16 times. If you were speaking with someone native to Venus who called the time it takes their planet to go around the Sun "a year", then you could tell them you were 16 years old. Of course, this doesn't change your actual age, just the meaning of the word used to describe it.
"Venusian" typically refers to something associated with the planet Venus, such as its atmosphere, surface features, or hypothetical inhabitants. It can also refer to qualities or characteristics often attributed to the planet, such as beauty or love-related themes.
Does Venus have a greenish color?
No, Venus appears yellowish-white in color due to its thick atmosphere and cloud cover. The clouds in Venus's atmosphere contain sulfuric acid droplets which reflect sunlight, giving the planet its characteristic color.
Does mercury or Venus have very long periods of day and night due to rotation time?
No. But a solar day (sunrise to sunrise) is longer than its orbital period -- in fact it is exactly twice as long. Due to Mercury's 3:2 spin-orbit resonance, a solar day (the length between two meridian transits of the Sun) lasts about 176 Earth days. The orbital period around the sun is about 88 days.
A sidereal day (the sidereal period of rotation), lasts about 58.7 Earth days.
Yes, Chandrayaan is a satellite. It is an Indian lunar exploration mission that aims to study the Moon.
The diameter of Venus is about 95% of the diameter of the Earth.
Venus is 12103.6 kilometers in diameter from any reference. (Its slow spin does not produce a bulge.)
Earth has an equatorial diameter of about 12756.2 kilometers and a polar diameter of about 12713.6 kilometers.
How many light years is there between Mercury and Venus?
The average distance between Mercury and Venus is approximately 0.5 astronomical units (AU), where 1 AU is approximately 93 million miles. One light year is about 63,241 AU, so the distance between Mercury and Venus is about 0.0000079 light years.
What planet is the current evening star?
The planet Venus is sometimes known as `the Evening Star` or `The Morning Star`, even though it is a planet. It has to be in the right position relative to the sun and earth though. Its not always seen as it may be on the `other side` of the sun. When it is in its best position to be observed from earth, it is the third brightest thing in the sky after the sun and moon.
What plant is called theevening star?
The planet Venus is normally referred to as the morning or evening star depending on
where it is in its orbit around the sun. Venus is the brightest object in the sky after
the sun and moon.
What are some interesting things on Venus'?
One of the special features that are attributed to the planet Venus is that it is the second planet from the Sun. A second special feature is that the name Venus is also attributed to the Roman goddess of beauty. A third special feature is that Venus rotates on its axis from east to west rather than from west to east as the planet Earth rotates.
What is the magnetic field of Venus's?
Venus has a small magnetic field created by the interaction of its ionosphere and the solar wind. This is different from most of the intrinsic planetary magnetic fields (those generated by planetary cores) that are commonly spoken about.
Venus either lacks an intrinsic magnetic field or it has one that is in the midst of a polarity reversal.
What are the clouds that surround Venus made of?
Venus' atmosphere is mostly carbon dioxide (this is what we breathe out) and the rest is mostly nitrogen. There is a very thick layer of poisonous clouds covering the entire planet. These clouds are made up of sulfuric acid droplets. (The clouds on earth are made up of water droplets.)
First of all, a "negative" and a "positive" magnetic field would attract each other and move together so you would need two "positive" or two "negative" fields that would repel each other.
The actual force between them depends on a lot of different things so there isn't really a good solid answer.
In case you're wondering why I put positive and negative in quotes some people would argue that there isn't really a sign to magnetic fields, and that it's more of a directional thing.
No one know how the earth is going to end. Since it is a future event, it would just be a guess or conjecture on ones part. The earth's demise has been bantered about since the beginning of time. Nothing to worry about, I am sure it is no time soon. Better to concentrate on what you can make better so the chances are far less. Answer: It is thought that in about 4-5 billion years that the sun will run out of fusionable material and swell into a red giant, consuming all the inner planets, and then collapse into a white dwarf, and then cooling into a brown dwarf. As pointed out, we will be long gone by then.
The earth takes days to go round the sun?
The Earth takes about 365.2422 days to go once around the Sun. Actually, the exact number of days depends on the reference point chosen; the above number corresponds to the equinox point, which is what defines the seasons. In any case, it is close to 365 and one-quarter.
