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Mars Asteroid Impact - Is an Asteroid Going to Hit Mars?

30 January 2008 6 Comments

A couple of months ago, various online news magazines and newspapers reported that an asteroid is going to hit Mars. Probability was between 1/45 to 1/75 according to some newspapers. The date when the asteroid should hit Mars is tomorrow, January 30th. Now, is the asteroid going to hit Mars or not?

Because this is a very interesting phenomenon, I have been really waiting to see if the asteroid hits Mars tomorrow. In late December researchers reported that the risk of impact is higher, but soon in early January the risk was lowered. Now when the probability is 2.5%, it looks like the impact is not going to happen. The asteroid WP5 is going to miss Mars by about 30.000 kilometers. That is a pity. A direct impact to Mars would have been a very interesting phenomenon and something worth of observing. Imagine how great chance it would be for the rovers in Mars to study the crater of the impact.

Image source: http://www.space.com/php/multimedia/imagedisplay/img_display.php?pic=h_az_meteorcrater_02.jpg&cap=Meteor%20Crater%20near%20Winslow,%20Arizona%20is%20a%20favorite%20tourist%20stopover,%20but%20also%20a%20less-than-gentle%20reminder%20that%20Earth%2In 2004, fragments of the comet Shoemaker-Levy 9 smacked into Jupiter, creating a series of overlapping fireballs in space. Now there is a chance to see a similar phenomenon, but it looks like that most likely it is not going to happen. WP5 with estimated diameter of 164 feet (50 meters) and travelling 15 times faster than a rifle bullet, would have caused a somehow similar crater as the one that hit northern Arizona 50.000 years ago.

If the asteroid did hit Mars, it could release about 3 megatons of energy and leave a crater about a half-mile (0.8-km) wide. Steve Chesley from Jet Propulsion Laboratory (JPL) estimates that such impacts occur on Mars every thousand years or so. So, let’s wait anoterh 1000 years..

Image source.


This article was written by Marko Pyhajarvi and its original location is in HomeboyAstronomy.Com astronomy blog. For more great astronomy articles, please visit HomeboyAstronomy.Com!

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6 Comments »

  • pericles said:

    One thing is certain. It will happen one day. It’ll also happen here. Let’s hope that our technology will be good enough.

  • yevka said:

    hi. just blogged hop from entrecard. i really like your layout. :) is it okay to ask where you got it? :)

  • marko (author) said:

    Right on. One day it will happen as it has happened in the past as well (Tunguska in Siberia, early 1900). I hope it won’t happen soon :)

  • marko (author) said:

    yevka, thanks for stopping by. Please, send me a message in Entrecard. We can keep our WP theme discussion in Entrecard because it is not related to astronomy.

  • pericles said:

    And the funny thing is that Tunguska was a break up before impact. I do not want to know what might have happened.

  • marko (author) said:

    Yeah, it happened so long time ago and in those days news and media was slow. It took several years before the first western people got into the area.

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