Questions tagged [impact]

Questions regarding the collision of one thing with another

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5
votes
0answers
111 views

Would a kinetic impact “cloud” avoid fragmenting an asteroid to be deflected?

A problem with using a traditional kinetic impactor in one piece, like the one used by Deep Impact, to deflect a hazardous NEA, is that its effects depend on the subsurface composition of the asteroid....
10
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3answers
659 views

Could we deal with an asteroid threat given current technology?

If we discovered a sizeable (Tunguska-like mass or larger) near-earth object tomorrow that was on a definite collision course with Earth in the near future, could we deal with it with our current ...
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2answers
868 views

Extinction asteroid (10-100 km) impact avoidance

With the present "state-of-the-art" of space technology what is possible to do to avoid an Earth impact by rocky bodies 10 km to 100 km in diameter? Is there any international project to develop a ...
7
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1answer
344 views

Playing football in microgravity: is it hazardous for instruments?

In video documents where astronauts are in micro-gravity, we often see them moving objects without paying attention for the nearby instruments or buttons panels (either aboard spacecrafts or aboard ...
12
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7answers
1k views

Is it (or why is it) worse to break up a asteroid on a collision course with Earth?

It is quite common to find (pseudo?) scientific statements to the effect that blowing up asteroids which are heading our way is a very bad idea, and that the movie Armageddon got this point totally ...
9
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1answer
3k views

Aren't the mirrors of the James Webb Space Telescope too unprotected?

I've looked at the design of the James Webb Space Telescope and I got curious about something, some years ago, it seems that the international space station was hit by micro-meteorites. I'm wondering ...
7
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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 ...
10
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1answer
4k views

Could a gun fired inside the ISS rupture it?

We know there is at least one gun in the ISS the caliber seems to a state secret. According to Wikipedia and NASA large pdf there are over 100 shield configurations on the ISS. These would be ...
4
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1answer
839 views

Do meteor showers from 209P/LINEAR cometary debris pose a threat to the ISS and other Earth-orbiting satellites?

This is a somewhat similar question to What risk management options are available for Mars orbiters and rovers to mitigate threat of impacting with Siding Spring cometary debris?, only this time much ...
8
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1answer
445 views

How many space craft have been intentionally crashed through 2014?

A couple of comments on the question Has there been any mission to land on a planet or moon in the Outer Solar System? suggesting that there is no scientific benefit to a crash on a moon, reminded me ...
10
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1answer
8k views

What happens if an astronaut is hit by a tiny micrometeorite?

A micrometeorite (including space debris in LEO) hitting the metal wall of the ISS would likely cause a shower of secondary high speed fragments. But there are other "softer" materials proposed which ...
2
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1answer
254 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?
12
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2answers
842 views

What risk management options are available for Mars orbiters and rovers to mitigate threat of impacting with Siding Spring cometary debris?

I was reading this article on New Scientist titled Fiercest meteor shower on record to hit Mars via comet. Long story short, the Oort cloud comet C/2013 A1 Siding Spring is predicted to near-miss Mars ...
9
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2answers
533 views

Is the UK Space's MoonLITE project still on?

Impacting the Moon with ballistic projectiles to study its surface characteristics through debris plume sounds fantastic to me, especially with the success of previous such missions (or better said ...
10
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1answer
364 views

Any explanation for morphology of within crater formations on the northern Nili Patera caldera of the Syrtis Major volcanic plain of Mars?

The Nili Patera region has enjoyed fairly good media exposure recently, ever since high detail HiRISE (High Resolution Imaging Science Experiment) photographs hit the Internet, showing fabulous sand ...
8
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1answer
513 views

What were the circumstances of this impact event on Jupiter in 2012?

I recently came across this video of an impact on Jupiter in 2012: http://youtu.be/5-msU-YVb9E Curious about its origin, I did some research and found that the video was taken at 11:35 UTC on ...
13
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1answer
4k views

How frequently do asteroids collide with each other?

Space is empty ... lots of empty. Apparently so empty that the risk of collision between a spacecraft of our times, and an asteroid in the asteroid belt is said to be infinitesimal. Running a search ...
18
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1answer
939 views

What is the probability of impact?

Space Track is a website dedicated to passing along information about satellites to consumers, primarily satellite operators. The information comes from the US military. In addition to providing the ...
8
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1answer
154 views

How are current spacecraft tested for their impact durability?

I imagine the lift-off process itself puts a large amount of stress and strain on the rockets materials. With the amount of debris up in space there is always the risk of rocks to collide with the ...

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