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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
Well, honey, when a comet or asteroid crashes into an area, it's like a cosmic wrecking ball hitting everything in its path. Plants and animals in the impact zone likely got a front-row seat to the apocalypse. It's a rough day at the office for Mother Nature when a giant space rock decides to drop in unannounced.
What are Chunks of small rocky metallic or icy objects from asteroids or comets?
Chunks of small rocky, metallic, or icy objects from asteroids or comets are known as meteoroids. These fragments can vary in size and are often remnants from the formation of the solar system. When they enter Earth's atmosphere and produce a bright streak of light, they are referred to as meteors; if they survive the descent and land on Earth, they are called meteorites. These objects provide valuable insights into the composition and history of our solar system.
What is Group of asteroids called?
I would just call it that - a "group of asteroids".Names of specific "groups" include the asteroid belt between Mars and Jupiter; the Kuiper belt; the Trojans; and others.
Are asteroids made of iron and nickel?
Some asteroids are. Most are composed of a mixture of silicate minerals. Others are a mixture of the two.
Is the asteroids from solar system?
Yes, asteroids are found in our solar system. It is estimated that over 100,000 asteroids are located in the belt between Jupiter and Mars.
Where did last night's southern California fireball land?
Many residents across Southern California reported seeing a meteor or fire ball last night, November 6, 2013. There is no mention of this making landfall.
How do you know how far things in the universe?
Things go pretty far in the universe. There's more then one galaxy. There's trillions for all we know, but all I can say is check the NASA website. They should have some info on there.
This question is about measuring distances in astronomy.
It has been a big challenge for generations of astronomers.
There are several methods. Each method works best for particular distances.
So, there's a series of overlapping distance scales:
"Radar" can sometimes be used for objects within our solar system.
"Parallax" can be used within the solar system and for fairly close stars.
"Cepheid variables" are useful for greater distances.
There are several other methods too.
Often the idea is to use objects with known "absolute luminosity" as "standard candles".
The brighter such an objectappears to be, the closer it must be.
There are particular methods used for very large distances. For example, a particular type of "supernova" is useful.
Finally there's the famous "redshift", which is greater at greater distance.
See "Sources and related links" (below) for more details.
What consequences can result from an asteroid impact?
Many things can happen if an asteroid hit the earth. Here is a list of a few consequences. There could be an explosion when the asteroid hits the earth. There could also be a tsunami if the asteroid landed in the water. Another possible consequence is a global firestorm. Another possible problem is Acid Rain. The last and final problem from this small list is temperature effects.
What does the term pallas refer to?
Pallas refer to a friend of Athena's to which various Greek myths are attached. Also it's refer to a celestial object that is the second largest a asteroid about 520 km is it's diameter, revolving around the sun in a period of 4.62 years.
Can an asteroid comet or meteor hit Pluto?
Yes, any large object in the solar system can be hit by asteroids or comets. Pluto is located in the Kuiper Belt, a vast field of comets, so collisions with comets are probably not uncommon for the dwarf planet.
Why are asteroids more likely than comets to survive entry through Earth's atmosphere?
Comets are largely made of ice and the ice and rocky materials they are made of are more loosely packed than an asteroid which is typically more solid chunks of rock and metal.
What is the force of gravity at that surface of asteroids belt?
The asteroid belt does not have a surface as it is not an objects. It is a loose scattering of objects.
Why do all asteroids travel at 40000mph?
Actually they don't. They can travel at very different speeds, depending on their distance from the Sun. The Earth - or any object in an orbit similar to Earth's - has a speed of about 30 km/sec around the Sun. (I leave it for you to convert that to non-standard units.) An object at the distance of Neptune would have a speed of about 5.4 km/sec. That is assuming it has a circular orbit. Objects that are further out would be slower still.
What is a chunk of rock or dust in space that usually comes from a comet or an asteroid is?
"Meteoroid". If it actually hits the Earth's atmosphere, the streak of light will be a "meteor", and if the object survives to impact the Earth's surface then we call the remains a "meteorite".
Why does Saturn has an asteroid belt?
It is thought comets, most of which come from the Kuyper Belt or the Oort cloud and asteroids, most of which are in the asteroid belt between Mars and Jupiter, are remnants of the primordial cloud, from which our Solar system accreted.
Is the largest asteroid larger or smaller than Pluto?
The largest asteroid is far smaller the Pluto. The largest asteroid in our solar system is Ceres, with a diameter of about 900 kilometers. Pluto has a diameter of about 2,300 kilometers.
What are the Scientists going to use to block the asteroid?
There is no asteroid known to be on the way to hit Earth. If one were to be
discovered, then people would start working on a way to try and avoid a
catastrophe. But right now, there is no way.
How are composition the same between comets and asteroids?
The rocky, gritty material in a cometary nucleus is probably much like a solid asteroid in chemical profile. But most asteroids are solid, barren rock - the comet has a large percentage of ices in it.
The Chicxulub Asteroid Landed In New Mexico so why is the crater in Haiti?
Both locations are wrong. The Chicxulub asteroid landed on the Yucatan Peninsula, in the country of Mexico, more than 2,283 kilometers (1,418 miles) southeast of New Mexico and 3,812 kilometers (2,369 miles) southwest of Haiti.
