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View Full Version : Big Asteroid to Give Us One Very Close Shave



DemonGeminiX
08-31-2017, 12:09 AM
A space rock is approaching Earth! And although it would be irresponsible to shout "Incoming!" in a hypothetical movie theater and create a panic, asteroid 2012 TC4 will pass quite close to Earth's surface when it zips safely by our planet later this year.

Teams of scientists from NASA and the European Space Agency (ESA) that monitor the locations of near-Earth objects have been tracking asteroid 2012 TC4 with various instruments, including the ESA's Very Large Telescope Observatory. Those observations have made it possible to better predict when the asteroid will make its flyby of Earth, and just how close it will get to the planet. Observing close flybys like this also helps prepare teams to detect a near-Earth asteroid whose course might pose a threat to Earth.

2012 TC4 will fly by Earth on Oct. 12 at a distance of about 27,000 miles (43,500 kilometers), or about one-eighth the distance to the moon. Previous observations suggested the space rock might come to within 4,200 miles (6,800 kilometers), according to a statement from NASA.

Scientists are interested in this asteroid not only because of its close approach, but also because of its size: The asteroid is between 30 and 100 feet (10 and 30 meters) across, or the same general size as the rock that exploded above the Russian city of Chelyabinsk in February 2013.

NASA-funded astronomers from the International Asteroid Warning Network (IAWN) — which was formed by a United Nations subcommittee — will be conducting additional observations of the asteroid in the weeks leading up to the flyby "as part of an exercise of the recovery, characterization and reporting of a potentially hazardous object approaching Earth," according to the news release.

"This is a team effort that involves more than a dozen observatories, universities and labs across the globe so we can collectively learn the strengths and limitations of our near-Earth object observation capabilities," said Vishnu Reddy of the University of Arizona's Lunar and Planetary Laboratory in Tucson, who leads the campaign to track and characterize 2012 TC4 for the IAWN. "This effort will exercise the entire system, to include the initial and follow-up observations, precise orbit determination, and international communications."

This story was originally published on Space.com.

http://www.msn.com/en-us/news/technology/big-asteroid-to-give-us-one-very-close-shave/ar-AAqZyRr?li=BBnb7Kz

Griffin
08-31-2017, 01:36 AM
I refuse to get my hopes up again that it hits. :meh:

Godfather
08-31-2017, 02:32 AM
I wonder how far we really are from being able to do something about this if it was going to hit.

deebakes
08-31-2017, 03:08 AM
http://i.imgur.com/08zyMym.gif

DemonGeminiX
08-31-2017, 03:41 AM
I wonder how far we really are from being able to do something about this if it was going to hit.

The best we can do right now is pray that it hits one of our enemies and hope that it's our God that's listening.

They have theoretical propositions for redirecting asteroids provided they have sufficient time to put the plan in action, but at this point, they're untested. Considering our lack of a reasonably cheap and plentiful fuel source, and the many complexities and time constraints of a space rocket launch, it's a really bad crap shoot at best.

Goofy
08-31-2017, 07:19 AM
I had a close shave last night after a shower :)

Teh One Who Knocks
08-31-2017, 10:40 AM
https://i.imgur.com/8fKBRWn.jpg

Hal-9000
08-31-2017, 06:59 PM
I wonder how far we really are from being able to do something about this if it was going to hit.

Carl Sagan gave a great, if not super scary talk about objects possibly hitting Earth. The gist is when we detect a large enough object on a collision course, the act of 'shooting it down' or breaking it into smaller objects before it hits is not feasible. Hitting it with enough force is the first problem, second and most important is any contact made will cause a number of smaller objects to still hit Earth. We can't vaporize large objects and those objects have to be relatively close to be hit.

He also said it's amazing that Earth hasn't already been hit by more extinction level objects. Keep a happy thought :lol:

Godfather
09-01-2017, 01:30 AM
Carl Sagan gave a great, if not super scary talk about objects possibly hitting Earth. The gist is when we detect a large enough object on a collision course, the act of 'shooting it down' or breaking it into smaller objects before it hits is not feasible. Hitting it with enough force is the first problem, second and most important is any contact made will cause a number of smaller objects to still hit Earth. We can't vaporize large objects and those objects have to be relatively close to be hit.

He also said it's amazing that Earth hasn't already been hit by more extinction level objects. Keep a happy thought :lol:

I wonder how large a rocket it would take to nudge the thing off course (a 20-30m asteroid like this one)? I'm sure some physics expert could do the math but we've now landed a rocket on an asteroid. Rather than trying to nuke the thing, it seems to me like nudging it might give the most predictable results from a physics standpoint.

Griffin
09-01-2017, 01:47 AM
It would probably be easier to put every rocket on earth into the same place and fire them all at once thus moving earth out of the path.

Godfather
09-01-2017, 02:03 AM
It would probably be easier to put every rocket on earth into the same place and fire them all at once thus moving earth out of the path.

Move us back and to the left a few hundred miles, global warming solved :thumbsup: #science