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Asteroids

Asteroids, or planetoids, are rocks larger than meteorites but smaller than planets that orbit around the Sun.

1,071 Questions

What is the name of the material that is thrown from an impact crater?

The name of the material that shaters or brakes during impact is called sediment.

What are some famous asteroids?

ceres, 2pallas, 3juno, 4vesta, 5astraea, 6hebe, 7iris, 8flora, 9metis, 10hygiea, 11parthenope, 12victoria, 13egeria, 14irene, 15eunomia, 28bellona, 35leukothea, 37fides, and Hektor. the numbers are part of their names.

Who discovered the first and largest asteroid?

The first large asteriod, Ceres, was discovered by Giuseppe Piazzi.

What do you call a piece of stone that enters the earths atmosphere?

Meteors not chlorophyll

answ2. Meteors if seen in the sky only, and meteorites if they land.

What is the largest asteroid ever found?

The largest asteroid is CERES, in the asteroid belt between Mars and Jupiter.

It is 580 miles (930 km) in diameter , about the size of Texas.

It accounts for about 32% of the total mass of the belt.


Are dwarf planets asteroids?

Dwarf planets are not asteroids. While both are similar in size and composition, dwarf planets are considered a distinct classification due to their spherical shape and ability to gravitationally clear their orbit of other debris. In contrast, asteroids are irregularly shaped and typically exist in the asteroid belt between Mars and Jupiter.

Where is the belt tenioner located on a 93 Isuzu trooper?

The belt tensioner on a 1993 Isuzu Trooper is located near the front of the engine, typically on the side of the engine block or near the top. It is responsible for maintaining tension on the belts that drive various engine components. You may need to refer to the vehicle's manual or consult a mechanic for specific instructions on how to access and adjust the belt tensioner.

What direction does Jupiter orbit?

Jupiter revolves around the Sun in a manner similar to the Earth, which is counter-clockwise as viewed from the arbitrary "north" or "above" the ecliptic plane.

Jupiter, however, is much farther out than Earth, with an elliptical orbit ranging from 740 to 816 million kilometers from the Sun. It takes about 11.86 Earth years to make one complete orbit.

What is the asteroid belt between Mars and Jupiter called?

The main asteroid belt is actually called the asteroid belt - pretty dull really.

Why do different planets have different atmospheres?

All the sun's planets probably had similar atmospheres when they first formed, billions of years ago. The most common gases were the light gases, hydrogen and helium, with smaller amounts of oxygen, nitrogen and other gases.

The immense gravity of the giant planets, Jupiter, Saturn, Uranus and Neptune, was able to hold the hydrogen and helium, which remain the predominant gases in their atmospheres, along with methane formed by the combination of hydrogen with free carbon. However, hydrogen and helium gradually escaped from the atmospheres of the smaller planets, where gravity is insufficient to hold the light gases permanently.

Even the heavier gases, such as oxygen and nitrogen, as well as carbon dioxide and water vapour, can gradually escape from smaller planets, such as Mars and Mercury. So, these planets now have quite thin atmospheres. The Moon and other small bodies in the solar system have essentially no atmosphere.

In our solar system, only the Earth and Venus are the right size to lose most of the light gases, while retaining gases such as oxygen, nitrogen, carbon dioxide and water vapour.

Has the earth ever been hit by an asteroid what effect did it have on the earth?

The Earth has been hit by meteoroids numerous times, even in the last century. Consequences range from small craters to flattened forests to mass extinctions on a planetary scale. For more information, see links below.

What is the history behind the word crap?

Many people associate it with Thomas Crapper, who popularized the flushing toilet. However, he was born in 1836, while the word cr*p existed since the late 1300's or the early 1400's. Around 1835 or so, that word became associated with the game of craps by independent association unrelated to the original word usage.

What is an asteroid called when it is burning up in the earth's atmosphere?

A metiorite. I believe what you're talking about is a meteoroid, not an asteroid. An asteroid is rather large, revolves around the sun, and when one hits the Earth, and a few have, it is disastrous. A meteoroid, on the other hand, is much smaller and when it hits the Earth's atmosphere and burns up (due to the friction of the atmosphere) it is called a meteor. After it reaches the Earth's surface, it is called a meteorite. http://dictionary.infoplease.com/meteor merci, have a good day.

What are astroids?

Many asteroids are in a loose distribution in orbit round the sun, (called the asteroid belt) some of them are in perturbed orbits due to them sometimes getting too close, some extremely so. Occasionally these,(sometimes not much more than odd bits of dust) intercept the earth's orbit just as the earth is passing by and fall to earth as "shooting stars". But if a really big one happened to get caught by the earth the result could be wide-scale destruction, and that would be called a rogue asteroid.

What can you put in between this 'During his tenure you found him to be .....his services were found to be satisfactory?

You can add the word 'competent'. The sentence would read, 'During his tenure you found him to be competent, and his services were found to be satisfactory.'

Why are asteroids called minor planets?

Asteroids are called minor planets because they are celestial objects that orbit the sun just like planets do, but they are much smaller in size compared to planets. The term "minor" distinguishes them from the larger, more traditional planets in our solar system.

Where can you find the asteroid belt?

The asteroid belt is located between the orbits of Mars and Jupiter in our solar system. It consists of millions of rocky objects that range in size from small pebbles to large asteroids.

The asteroid Ceres has a mass of 7 1020 kg and a radius of 500 km What is g on the surface of Ceres?

The acceleration due to gravity on the surface of Ceres can be calculated using Newton's law of gravitation: (g = \frac{G \times M}{R^2}), where (G) is the gravitational constant, (M) is the mass of Ceres, and (R) is the radius of Ceres. Plugging in the values gives (g ≈ 0.28 m/s^2).

How many asteroids have hit the earth?

Statistically none - or zero.

When an asteroid hits Earth - we know about it - or if it is large enough - we don't.

The last asteroid to "hit" Earth was about 3.3 million years ago and precedes numerous extinctions.

What does the asteroid belt look like?

The asteroid belt is a vaguely elliptical band between the orbits of Mars and Jupiter. This 'belt' contains different sizes of space rock and dust that is trapped in orbit between the two planets. The rocks within the belt tend to travel in loose clusters.

While collisions occur, the actual spacing between individual large asteroids can be measured in tens of thousands of kilometers. And while there may be more than a million asteroids over 1 km in diameter, their combined mass is only about twice that of the largest asteroid, the dwarf planet Ceres.

Is a millilitre larger than a Kioletre?

There is no standard unit called "kioletre." Millilitre (mL) is used to measure volume, where 1 millilitre is equal to 0.001 litres or 1 cubic centimetre. If "kioletre" is not a recognized unit, it cannot be compared to a millilitre.

How does DDT affect the Earth?

DDT is a persistent organic pollutant with a half life of between 2-15 years, and is immobile in most soils. Its half life is 56 days in lake water and approximately 28 days in river water. Routes of loss and degradation include runoff, volatilization, photolysis and biodegradation (aerobic and anaerobic). These processes generally occur slowly. Breakdown products in the soil environment are DDE (1,1-dichloro-2,2-bis(p-dichlorodiphenyl)ethylene) and DDD (1,1-dichloro-2,2-bis(p-chlorophenyl)ethane), which are also highly persistent and have similar chemical and physical properties. These products together are known as total DDT. DDT and its metabolic products DDE and DDD magnify through the food chain, with apex predators such as raptors having a higher concentration of the chemicals (stored mainly in body fat) than other animals sharing the same environment. In the United States, human blood and fat tissue samples collected in the early 1970s showed detectable levels in all samples. A later study of blood samples collected in the later half of the 1970s (after the U.S. DDT ban) showed that blood levels were declining further, but DDT or metabolites were still seen in a very high proportion of the samples. Biomonitoring conducted by the CDC as recently as 2002 shows that more than half of subjects tested had detectable levels of DDT or metabolites in their blood, and of the 700+ milk samples tested by the USDA in 2005, 85% had detectable levels of DDE. DDT is a toxicant across a certain range of phyla. In particular, DDT has been cited as a major reason for the decline of the bald eagle in the 1950s and 1960s as well as the peregrine falcon. DDT and its breakdown products are toxic to embryos and can disrupt calcium absorption thereby impairing egg-shell quality. Studies in the 1960s and 1970s failed to find a mechanism for the hypothesized thinning,however more recent studies in the 1990s and 2000s have laid the blame at the feet of DDE, but not all experts accept those claims. Some studies have shown that although DDE levels have fallen dramatically that eggshell thinness remains 10-12 percent thinner than pre-DDT thicknesses.In general, however, DDT in small quantities has very little effect on birds; its primary metabolite, DDE, has a much greater effect. DDT is also highly toxic to aquatic life, including crayfish, daphnids, sea shrimp and many species of fish. DDT may be moderately toxic to some amphibian species, especially in the larval stages. In addition to acute toxic effects, DDT may bioaccumulate significantly in fish and other aquatic species, leading to long-term exposure to high concentrations. http://www.answers.com/topic/ddt?cat=health

Has anyone been killed in a rugby match?

There have been rare cases of players sustaining fatal injuries during rugby matches, usually as a result of head or neck injuries. Safety measures and protocols are in place to minimize these risks, such as strict tackling rules and medical assessments for players. The rugby community continuously works to improve player safety and prevent such incidents.