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At 06:32 AM 7/24/2002 -0700, kevin wrote:<br>
<blockquote type=cite class=cite cite>Asteroid 'will hit Earth in
2019'<br>
11.32AM BST, 24 Jul 2002<br><br>
<a href="http://www.itv.com/news/World391489.html" eudora="autourl">http://www.itv.com/news/World391489.html</a><br>
</blockquote><br><br>
Not so fast, sez NASA<br><br>
To see this story with its related links on the Guardian Unlimited site,
go to
<a href="http://www.guardian.co.uk/" eudora="autourl"><font color="#0000FF"><u>http://www.guardian.co.uk<br>
</a></u></font>Nasa dismisses asteroid collision claim <br>
Simon Jeffery <br>
Wednesday July 24 2002 <br>
The Guardian<br><br>
The chances of a recently discovered mile-wide asteroid, forecast to
hurtle towards Earth, actually hitting the planet are
"minimal", a Nasa scientist said today.<br>
But if it did, asteroid 2002 NT7 would strike on February 1 2019
unleashing tidal waves, massive fires, global volcanic activity and an
electromagnetic pulse that would destroy most of the electronics on
Earth.<br>
Astronomers have given the object a 0.06 rating on the Palermo technical
scale (a scale used to measure asteroid threats), making it the first to
be given a positive value.<br>
Initial calculations show that its 837-day course around the Sun - which
tilts to just within the Earth's orbit - could put it on a collision
course in less than 17 years.<br>
Donald Yeomans of Nasa's jet propulsion laboratory said the margin of
error was however tens of millions of miles, meaning the likely threat
was minimal.<br>
"An object of this size would be expected to hit the Earth every few
million years, and as we get additional data I think this threat will go
away," he told the BBC.<br>
An asteroid that hit New Mexico 65m years ago is believed to have killed
off the dinosaurs.<br>
The Liberal Democrat MP Lembit Opik, who campaigns for the government to
take asteroid threats seriously, said 2002 NT7 was the most dangerous
object yet seen in space.<br>
"There's a good chance this particular object won't hit us but we
know that a large object will hit us sooner or later. This is the closest
approach we have seen so far," he said.<br>
"It does sound like a science fiction story and I may sound like one
of these guys who walks up and down with a sandwich board saying the end
of the world is nigh, but the end is nigh."<br>
Last month an asteroid the size of a football pitch missed the Earth by
75,000 miles - less than one-third of the distance to the moon. It was
not observed until three days later.<br>
Scientists said if it had hit a populated area, it would have released as
much energy as a large nuclear weapon.<br>
Copyright Guardian Newspapers Limited <br>
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