Questions tagged [meteorites]

Questions about objects that enter the Earth's atmosphere from space.

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2
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1answer
185 views

How long can a high altitude balloon fly before a meteor hits it?

The balloon has a lighter than air gas in it. It flies at 30 km above sea level. It is spherical, with a radius not exceeding five hundred meters. How long can it fly before a meteor pokes a hole in ...
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1answer
236 views

99.99% pure iron meteorite [closed]

[![enter image description here][1]][1] I have a 99.99% pure iron meteorite. It is 4,902 grams.
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2answers
291 views

How was the 18 December 2018 Bering Sea Fireball detected and characterized? Was it a serendipity or a weather satellite?

The map at Fireball and Bolide Data is reproduced in the BBC News article US detects huge meteor explosion with the 2013 Chelyabinsk event and the recent 18-Dec0281 Bering Sea event annotated. The ...
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2answers
195 views

What do the insulation and meteorite protection layers being opened on the Soyuz MS-09 spacecraft look like?

This current news item in TASS Russian cosmonaut Kononenko approaches Soyuz MS-09 spacecraft for inspection says: Earlier in the day, the two Russian cosmonauts began their six-hour spacewalk, ...
17
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3answers
727 views

Can we expect to find pure iron or only nickel-iron alloys in asteroids?

Relatively pure iron has more uses and potential value than nickel-iron alloys. Separating those nickel-iron alloys commonly found in meteorites and expected to be common in asteroids (Kamecite, ...
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1answer
100 views

How are meteoroids, asteroids and debris in space tracked?

How far, small, and fast can meteors be detected?
3
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3answers
115 views

What is used to monitor objects burning up in the atmosphere on descent?

Tiangong 1 is expected to fall out of orbit and burn up somewhere this weekend. On March 12, 2018 people all over Western Washington State reported a flash and loud boom which is believed to be a ...
10
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3answers
3k views

Is it possible for something to fall straight down to earth? What are the requirements?

Meteorites leave strewn-fields before impacting, SpaceX rockets come in at an angle and stand up straight at the last second, the Soyuz capsule doesn't fall straight. I assume this has to do with the ...
1
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1answer
259 views

Why doesn't the perchlorate on Mars' surface oxidize metallic meteorites?

"Egg Rock" is a smooth, shiny nickel-iron meteorite found sitting on the surface of Mars on 30-Oct-2016. It is described the next day in Arizona State University's Red Planet Report website: Curiosity:...
4
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1answer
352 views

Who discovered “Egg Rock”? The Curiosity rover or people?

"Egg Rock" is a smooth, shiny nickel-iron meteorite found sitting on the surface of Mars on Curiosity's Sol 1505, or 30-Oct-2016. It is described the next day in Arizona State University's Red Planet ...
7
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1answer
7k views

What impact would a pea size meteor have when it hits the ground?

If a meteorite the size of a pea landed on the road in front of you, what sort of impact would it have? How big would it have been when it entered the atmosphere and would it have been visible during ...
6
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3answers
1k views

Is there a meteorite from Earth on Mars?

No body is immune to impact by other bodies. Earth too is no stranger to body-play; Micro-micro meteorites accumulate by the giga-ton annually in the form of dust. Larger impact bodies such as the ...
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5answers
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Is a Moon-base inherently more dangerous than a Space Station?

Living in space is pretty dangerous, and the wonderful people of the ISS float around the Earth at risk of radiation and micrometeoroids. I'm curious if they're any more safe than if they simply were ...
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1answer
244 views

Minimum size meteoroids for meteorites on Earth, Mars, and the Moon?

What approximate size range, considering the different construction and composition, must meteoroids be to become meteorites on Earth, Mars, and the Moon?
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0answers
556 views

Method to estimate asteroid density based on spectral type

It's easy to get spectral information about asteroids, from the JPL database for instance. They often have an albedo estimation, but almost never have a mass estimate (if you have albedo and mass, ...
9
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1answer
625 views

Have any missions suffered damage from meteorites whilst on the Lunar surface?

Earth's magnetic field, and atmosphere shield the surface. Space debris that would otherwise cause damage lose a fair amount of mass and velocity in transit through these layers. Luna lacking such ...
11
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1answer
155 views

What existing technologies record data on meteors?

As per the title, I'm curious about technologies that would detect previously unknown objects like the Chelyabinsk Meteor as they enter the atmosphere. An answer that could satisfy some or all of the ...
19
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2answers
439 views

Does the Perseid peak affect mission launches?

Tonight (Aug 12 2013) is the annual peak of the Perseid meteor shower. Since meteors are chunks of rock flying through the atmosphere at crazy high speeds, I'm wondering if there are any ...
13
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5answers
5k views

What maximum speeds can be expected from meteorites?

Yes, I know, c is the limit, but let's say we want to build a shelter that will be meterorite-impact-proof, on the Moon, or some asteroid or anywhere without the atmosphere. We can spot anything ...
19
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4answers
4k views

What's the (particle) density of the asteroid belt?

Obviously the asteroid belt is pretty sparsly populated. But how sparsly exactly? What is the state of knowledge regarding how many particles are there in a given size bracket and a volume, what ...