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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 wrestler uses the saying things are looking up?

The term "Things are looking up" wasn't really a saying, it was just a clue to who was Mr. McMahon's illigtimate son, which turned out to be Hornswoggle.

Auto shoulder belt will not close on 1989 Toyota Cressida?

If the auto shoulder belt in your 1989 Toyota Cressida is not closing, there may be an issue with the belt retraction mechanism. Check for any obstructions or debris that may be preventing proper operation. If the issue persists, it is recommended to have the system inspected by a qualified mechanic to diagnose and repair the problem.

What is the airspeed in MPH of terminal velocity?

The terminal velocity of a human in free fall is around 120 mph (190 km/h). At this speed, the force of air resistance pushing upward is equal to the force of gravity pulling downward, resulting in a stable descent.

How do a meteor and an asteroid differ?

An asteroid is larger than a meteoroid, though the actual size requirement is not defined.

What plan does the government have if the earth is on collision course with an asteroid?

There are no current public plans for what happens if an asteroid is on a confirmed collusion course with the earth by any government. Although many governments most notably the UK have commissioned companies to submit plans for the inevitable event. On the other hand it is widely believed that most governments have secret plans on what their government will do in the event.

Plans have circulated the scientific community about what to do. These plans include breaking the asteroid up with nuclear devices, despite the general consensus that asteroids are too dense for a nuclear device to do any damage and even if it does it will simply break the asteroid into several objects still on a collusion course. Other plans include pushing/diverting the asteroid with a variety objects including a laser beam to slowly push the asteroid.

Currently NASA tracks any object that is 700m or greater in diameter although plans are in the works to make that 70m. Another possibility that has been documented is that the Russians have 3 50 kiloton nuclear missles in silos strategically placed across siberia. although this approach would work it would send a debris cloud hurtling towards earth causing wide spread but minor damage.

How often does a one-kilometer object hit Earth?

A meteorite with a 1km diameter will undoubtedly cause global damage. It is believed that a meterite a bit larger was responsible for the extinction of dinosaurs. Rocks this big only appears to hit Earth once every 100 million years.

Why do asteroids explode if they are already near Earth?

Despite moving through the rarified upper reaches of Earth's atmosphere the immense speed at which a meteor travels rapidly compresses the air in its path. The meteoroid then experiences what is known as ram pressure. As the air in front of the meteoroid is compressed its temperature quickly rises.

When was the last asteroid to hit earth?

The Earth has undoubtedly been struck by many different asteroids over the past few billion years, though the signs of many have been eroded away by weather and geological changes. Among the more well known places of such collisions are the 110-mile Chicxulub Crater at the end of the Yucatán Peninsula (which ended the dinosaurs), the 4,000-foot wide Meteor Crater in Arizona, and the site of the Tunguska River from the overhead detonation of an asteroid in 1908.

What type of asteroid is Abai?

There is no specific asteroid named "Abai" that is widely recognized or recorded in scientific literature. It is possible that "Abai" may refer to a fictional asteroid or a lesser-known one that has not been extensively studied or categorized.

Pieces of space debris that are smaller than the smallest asteroid?

Pieces of space debris that are smaller than the smallest asteroid are commonly referred to as "space junk" or "microdebris." These can include fragments of satellites, rocket parts, or even paint flecks that have broken off from larger objects in space. Despite their small size, they can still pose a threat to spacecraft and satellites due to their high speeds and the potential for collisions.

Are asteroids strange balls of light that appear from no where?

No, asteroids are not strange balls of light that appear from nowhere. They are rocky, irregularly shaped objects that orbit the Sun, primarily found in the asteroid belt between Mars and Jupiter. Occasionally, when an asteroid enters Earth's atmosphere, it may create a brilliant fireball known as a meteor.

Most asteroids in your solar system travel in a belt between which planets?

Most of the asteroids within our solar system can be found within the Asteroid Belt. Located between the orbits of Mars and Jupiter, the Asteroid Belt consists of millions of individual asteroids of varying sizes - from a speck of dust to hundreds of kilometers in diameter. The largest object within the belt is a dwarf planet - Ceres - which has a mass of 9.47x1020kg and a diameter of 476.2km.

What type of asteroid that would appear darkest and reflect the least light?

C: they are carbonaceous---made of silicate materials with a lot of carbon compounds so they appear very dark. They reflect only 3 to 4% of the sunlight hitting them. You can tell what they are made of by analyzing the spectra of sunlight reflecting off of them. This reflectance spectra shows that they are primitive, unchanged since they first solidified about 4.6 billion years ago. A sizable fraction of the asteroids are of this type. The asteroid called Mathilde, explored by the NEAR spacecraft is an example of this type.

What is the main difference between an asteroid an a meteoriod?

The main difference between an asteroid and a meteoroid is size. Asteroids are larger objects, typically measuring more than 10 meters in diameter, while meteoroids are smaller, ranging from a few meters down to dust-sized particles. Additionally, asteroids are usually found in the asteroid belt between Mars and Jupiter, while meteoroids can be found in various places, including the asteroid belt, as well as comets or other sources.

What is the orbital period of asteroid 12867 Joëloïc?

The orbital period of asteroid 12867 Joëloïc is approximately 3.92 years or 1430 days. It completes one orbit around the sun in this time.

An asteroid can best be described as what?

An asteroid is a small rocky object that orbits the Sun, typically found in the asteroid belt between Mars and Jupiter. They are remnants from the early formation of the solar system and can vary in size from small boulders to objects several hundred kilometers in diameter.

What kind of damage would a large asteroid do to eartth?

This would depend on a number of factors, including:

  1. The exact mass and size of the asteroid
  2. Where it hits the Earth
  3. The trajectory of the asteroid
  4. The initial velocity of the asteroid
  5. The density of the asteroid

Potential damage that an asteroid can cause includes:

  1. Damage from blast waves
  2. Damage from resulting earthquakes
  3. Damage from resulting fires
  4. Damage from tidal waves if the asteroid hits a body of water

What are killer asteroids?

Killer asteroids, also known as potentially hazardous asteroids (PHAs), are space rocks that have the potential to collide with the Earth and cause significant damage or even mass extinction. These asteroids are typically larger than 1 kilometer in diameter and follow orbits that bring them close to our planet. However, the term "killer asteroids" is used more in popular culture rather than the scientific community.

Why is it good that most asteroids are in the same plane as the earth?

The fact that most asteroids are in the same plane as Earth, known as the ecliptic plane, is beneficial for a couple of reasons. First, it makes it easier for astronomers to observe and study these asteroids. Second, it reduces the likelihood of catastrophic asteroid collisions with Earth, as they are confined to this plane rather than randomly scattered throughout space. This alignment allows for more efficient monitoring and tracking of these objects.

When will the next mass extinction occur?

This is answers.com, not the psychic network.Nobody knows. Various people have predicted various things, but until one of them happens, we won't know for sure.

At one time it was believed that mass extinctions were periodic, and some analyses suggested we were about due for one ... but as more data has come in, it now looks like the periodicity may have been a statistical coincidence, and that smaller extinction events occur all the time. There was a relatively recent one in the oceans about two million years ago, for example (the last really major one was the K-Pg event 66 million years ago, widely thought to have been caused by an asteroid impact).

How many AU is the asteroid belt away from the sun?

The asteroid belt is located between the orbits of Mars and Jupiter, roughly 2.1 to 3.3 astronomical units (AU) from the Sun. On average, it sits at about 2.7 AU. One astronomical unit is the average distance from the Earth to the Sun, approximately 93 million miles or 150 million kilometers.

How to calculate if an asteroid will hit the earth?

There is essentially no chance of any given asteroid ever hitting the Earth, because those with orbits that made them likely to hit the Earth have already hit the Earth. So it's not something you really need to worry about.

If you're just curious... well, really, you don't want to know that badly. It comes down to solving n-body gravitational equations, and for any reasonably sized n (i.e. larger than, say, 3) there is no known exact solution except in special cases, so you have to use numerical methods and hope the interesting bits don't get lost in rounding errors.