19

yes it is possible,they are called Earth grazers or Earth-grazing fireball. they are not rare but only few incidents are recorded. for more details read this Wikipedia page https://en.wikipedia.org/wiki/Earth-grazing_fireball


16

Oxford English Dictionary is an authoritative source, but it's aimed at the general public. I think no astronomer will frown upon you when you're using the terms meteoroid and meteorite to describe a small body impacting another body in the solar system. As an example, Wikipedia doesn't impose the limitation that it must hit Earth: A meteorite is a solid ...


13

The process of differentiation is how metals like iron and nickel can become separated from less dense substances. It generally occurs in large, partly solid bodies in the early solar system, whose interiors are melted either via accretion energy, radioactivity or some combination of the two. A solid iron meteor is likely a fragment of a differentiated ...


12

Wikipedia's entry for Heat Shield Rock says: Heat Shield Rock is a basketball-sized iron-nickel meteorite found on Mars by the Mars rover Opportunity in January 2005. The meteorite was formally named Meridiani Planum meteorite by the [Meteoritical Society](Meteoritical Society) in October, 2005 (meteorites are always named after the place where they were ...


10

The objects you are refering to are actually two different objects: asteroids and comets. Meteor and meteorite are other names for an asteroid, at a given time of its interaction with our planet. We'll get to that. So first, what is the difference between an asteroid and a comet? A comet is a small solar system body that display a "coma" (an atmosphere of ...


10

It’s been a while since I studied this, and meteorites are very much not my field, so I’ll share my current understanding but would welcome corrections from those more informed :-) These meteorites are mostly iron with a small amount of nickel. For a given composition of iron and nickel, there are different crystal structures that can be formed. Of ...


9

The velocity of the impactor of tens of kilometers per second provides enough energy to heat the impactor and parts of the target to several thousands of Kelvins, so that parts are converted to plasma or to vapor, at least. According to Planck's law the color at these temperatures is white or bluish. According to the Stefan Boltzman law the total emitted ...


7

If this is something that you have found (rather than purchased as a meteorite) the chances are very small that it is a meteorite. Even if it is a meteorite, the chances it's a Martian one are even smaller still and none have been found in the United States. According to the Meteorites in the US page, which draws from the Meteoritical Society database, only ...


6

Well there are some things to consider. Initially if you could make sure that after you blow up an asteroid you will end up with numerous but small enough pieces so that they will either: one, burn up in the atmosphere or two, be headed away from Earth (and not hitting us five years later) then we are OK, and blowing up the asteroid with a missile would be a ...


6

The gravity of Earth did not change substantially. The strength of gravity on Earth is about 9.8, but varies between 9.76 and 9.83 ms-2(due to Earth not being a perfect sphere) This can be approximated from the mass of the Earth using $$g=GM_e/r_e^2$$ Where $M_e = 5.97219\times 10^{24}kg$ and $r_e= 6371000m$. The mass of the asteroid was about $10^{16}kg$...


5

Mars is the only planet providing rocks with a similar chemical composition and age. So the origin of the meteorite is evident. This doesn't mean, that it's absolutely waterproof. There might have existed protoplanets similar to Mars 4 billion years ago, which since then have been swallowed by Jupiter, the Sun, or have been ejected out of the solar system. ...


5

There is a class of meteorites called Lunar Meteorites and several of those have been found on earth. Of course, it doesn't necessarily indicate whether we have actually witnessed a certain lunar meteor shower. Considering that nearly 100 metric tons of space debris falls on earth each day, one would imagine that it'll be colossally impractical to attempt ...


5

It looks to me that you probably have some misunderstanding of the term meteorite. A meteorite is a remnant body which has reached the surface of a major or minor body (a planet, a moon, an asteroid, etc.). The meteorite's parent body (a meteoroid) would definitely lose its entire water ice (if it had any at all) no later than during its passage through the ...


5

You can use the Purdue 'Impact Earth!' website to estimate the effects of impacts of objects of various size, speed and composition. As detailed in the accompanying documentation, which was published in Meteoritics and Planetary Science, the energy calculation and atmospheric drag during entry is relatively straightforward physics; things like crater sizes, ...


4

Asteroids are what are called minor planets - small inner solar system rocky bodies. Especially between Mars and Jupiter. Comets typically have highly elliptical orbits but they don't have to. The key defining feature of a comet is that it has a gaseous atmosphere and a tail when it passes close to the Sun. Comets are generally loose aggregations of ice, ...


4

Your first resource here can be the impact effects calculator, It can show you when it is likely that a high velocity impact will occur. Somewhat surprisingly, faster objects are less likely to hit the ground at hyper-velocity, as they are more likely to break up and explode at altitude. They will likely form multiple meteorites, as the Chelyabinsk meteor ...


4

Yes, there is an observed impact of a comet into a celestial body. A fairly recent one in 1994 is the comet which impacted into Jupiter, Shoemaker-Levy-9 Here's a video of this event happening.


3

Asteroid impacts on the Moon are monitored by researchers and amateurs. The Meteoroid Environment Office has a list of candidate impacts I stumbled upon, Lunar Monitoring Program is another. Videos and photos of Lunar impacts. One impact photo to the left. All recorded impacts 2005-2015 to the right above.


3

In historical times we do not have enough data to do serious statistics about meteors of the size of the Chelyabinsk meteor. In Wikipedia's list of meteor air bursts there are only six events within two orders of magnitude of the Chelyabinsk meteor. $$\begin{array}{lll} \hline \text{Date} & \text{Location} & \text{Energy [TJ]}\\ \hline \text{1490-...


3

Meteorite abundances are referenced to their silicon abundance and then that is bootstrapped onto the hydrogen scale by assuming that the silicon abundance of meteorites is the same as that in the Sun. See for example Asplund et al. (2009). This means there is an additional uncertainty of a couple of hundredths of a dex when comparing meteoritic and solar ...


3

In short, no. The reason is that while finding meteorites on Earth is hard, finding them in space is a lot harder. A small asteroid, weighing only a few kg can't be spotted while it is still in space. The first we know of them is when they make their fiery descent. On the other hand, there are some large asteroids that are metallic, such as 16 Psyche, and ...


3

I agree with @Gerold, "meteorite jewelry" usually means a band made of iron meteorite. The good thing about the way you are doing it with "stone" settings, is that it practically prevents allergic reaction plus less rusting. Frequent oiling also helps. But even so, get ONLY Gibeon or Seymchan meteorite material for the best patterns and rust-resistance. You ...


3

Asteroids don't have control of their orbit. They are influenced by gravity; they obey the laws of physics. There aren't any traffic lights for them in space to obey so they know to slow down and stop to avoid a collision with a planet. They'll just carry right on going like someone driving through a red light. If it goes right in front of a planet at the ...


3

Many comets are such lucky ones... That's why we see them with their icy tails evaporating: They have only recently been scattered into the inner solar system. Just like the well-studied comet 67P, you could ask "where has 67P been for all those billion years?". For at least this comet, we know the answer: It has been orbiting in the outer solar system, ...


3

Meteorites are composed of rock and iron. They are not radioactive, at least no more so than any other stone. A banana is probably more radioactive than a meteorite. You do not need protection for foreign viral agents either. Meteorites are stones that have been orbiting in space, usually for billions of years. They do not contain any living things. The ...


3

In ancient times people sometimes saw things in the sky, and they did not know what caused them. They called these things (in Greek) "ta meteora" or "things in heaven". Some of these we know call "stars" others "planets" and some "comets". We understand those to be bodies in space. Other "meteora" we now understand to be atmospheric effects, for example "...


2

Micrometeorites are just tinier versions of regular meteorites. As such, they can have the same composition as any other meteor class. There's nothing that we know of that says they have a chemistry more like one kind of dust source, although this is controlled entirely by observational bias. Certain types of particles are more likely to make it to our ...


2

It might seem like the way to figure this out would be to test the composition of micrometeorites and see what objects this matches up with. This, however, is not a viable technique, as Genge et al. (2008) explains: In interplanetary space dust particles are inherently transported sunwards by P-R light drag (Dohnanyi 1967) and once captured by the Earth ...


2

Since this has gone unanswered, I'm going to give it a shot. Probably the answer is no. We know that on some moons, volcanic eruptions do send material into space. Enceladus for example, feeds Saturn's E-ring. It regularly shoots about 200 KG per second into space. The other highly volcanic moon in our solar system is Io which shoots material high ...


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