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Asteroid to fly past Earth this weekend
CNN blogs ^ | Thursday, March 7th, 2013 | Melissa Gray

Posted on 03/08/2013 5:24:39 PM PST by SunkenCiv

An asteroid the size of a city block will pass by Earth this weekend, but have no fear: There's no danger of it hitting our planet.

The 80-meter (262 feet) wide asteroid makes its closest approach to Earth on Saturday afternoon in the United States. It will be about 975,000 kilometers (604,500 miles) away, said Don Yeomans, a planetary scientist at NASA's Jet Propulsion Laboratory in California. That's about 2 1/2 times the distance from the Earth to the moon.

"It's a pretty good size, but it's not getting that close, at least by recent standards," Yeomans said.

The asteroid was only discovered Sunday because search telescopes can't find objects of that size until they get close.

Now that it's in view, Yeomans said, astronomers can accurately chart its orbit. And they assure us this space rock will only make a fly-by.

The asteroid is already observable in the night sky, even with sophisticated amateur telescopes, he said. But get a good look at it now, because after the close approach, the asteroid will appear in the daytime sky and be harder to see, Yeomans said.

Dubbed 2013ET (which is simply code for when it was discovered), the asteroid is the latest object from space to come near our planet.

A meteor exploded over southwestern Russia last month, injuring more than 1,500 people, Russian authorities said. In what astronomers have said was an unrelated coincidence, a larger asteroid passed by Earth the same day, about 17,100 miles away at its closest.

This Friday, a comet called Pan-STARRS will come into view over the Northern Hemisphere. A second comet, called ISON, may be visible in November. Scientists say neither comet poses a threat to Earth.

(Excerpt) Read more at lightyears.blogs.cnn.com ...


TOPICS: Astronomy; Science
KEYWORDS: 2013et; asteroid; catastrophism

1 posted on 03/08/2013 5:24:39 PM PST by SunkenCiv
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To: 75thOVI; agrace; aimhigh; Alice in Wonderland; AndrewC; aragorn; aristotleman; Avoiding_Sulla; ...



2 posted on 03/08/2013 5:25:13 PM PST by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
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To: SunkenCiv

Any chance it might hit DC?


3 posted on 03/08/2013 5:25:59 PM PST by ilovesarah2012
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To: SunkenCiv

Sequesteroid.


4 posted on 03/08/2013 5:26:47 PM PST by Tea Party Terrorist (Those who work for a living are now outnumbered by those who vote for a living.)
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To: Tea Party Terrorist
Sequesteroid.

I'm stealing that...

5 posted on 03/08/2013 5:30:39 PM PST by null and void (Gun confiscation enables tyranny. Don't enable tyranny.)
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To: SunkenCiv

Is it my imagination or have the last 12 months seen an increase in both asteroids AND comets?


6 posted on 03/08/2013 5:35:03 PM PST by BenLurkin (This is not a statement of fact. It is either opinion or satire; or both)
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To: SunkenCiv

Bright comet ‘lighting sky’ as it flies by Earth
http://www.freerepublic.com/focus/f-chat/2995016/posts


7 posted on 03/08/2013 5:36:06 PM PST by BenLurkin (This is not a statement of fact. It is either opinion or satire; or both)
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To: BenLurkin
Is it my imagination or have the last 12 months seen an increase in both asteroids AND comets?

Could be. Could also be just that we're "never letting a crisis go to waste" these days.

8 posted on 03/08/2013 5:38:11 PM PST by Steely Tom (If the Constitution can be a living document, I guess a corporation can be a person.)
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To: SunkenCiv
Image and video hosting by TinyPic

Noting to worry about. I have instructed Janet Napolitano to declare the earth an "asteroid free zone." Problem solved.

9 posted on 03/08/2013 5:40:13 PM PST by newheart (The greatest trick the left ever pulled was convincing the world it was not a religion.)
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To: Tea Party Terrorist

> Sequesteroid.

Usage example: Sequesteroids cause pain in your obama.


10 posted on 03/08/2013 5:40:39 PM PST by Jyotishi (Seeking the truth, a fact at a time.)
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To: BenLurkin

Improved observational satellites and telescopes specifically looking for these things coming on line.


11 posted on 03/08/2013 5:55:36 PM PST by mnehring
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To: BenLurkin

Gerbil Warming!!!!


12 posted on 03/08/2013 6:03:00 PM PST by Recovering Ex-hippie (Go Galt!)
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To: SunkenCiv

Will NASA actually warn us when one is discovered a day or two out, and will hit us? It seems like they keep discovering these, just before they pass by.

Or will they evacuate the government underground, and let the rest of us fend for ourselves?


13 posted on 03/08/2013 6:22:02 PM PST by Yulee (Village of Albion)
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To: Tea Party Terrorist

Hence the term, “tight-assed”.


14 posted on 03/08/2013 6:25:20 PM PST by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
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To: ilovesarah2012

Dreamer.


15 posted on 03/08/2013 6:25:30 PM PST by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
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To: mnehring

The details in this news story really don’t back that up.


16 posted on 03/08/2013 6:26:09 PM PST by John W (Viva Cristo Rey!)
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To: ilovesarah2012

“They blew up Congress....Ha Ha Ha Ha!”


17 posted on 03/08/2013 6:26:49 PM PST by dfwgator
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To: BenLurkin

Technically, the number has either remained the same, or has decreased slightly as stuff burns up in our atmosphere.

;’)

The early warnings we get now make the numbers seem larger — IOW, objects were hummin’ by all the time, and we were down here, blissfully unaware, except when large boloids made it all or most of the way through, as happened at Tunguska in 1908, in the Amazon back in the 1930s, in Greenland in the 1990s (or was it 1980s?), out west over a national park in the early 1970s, in the Indian Ocean in the 1970s (that one is often still attributed to a South African atomic bomb test, but if that’s the case, where’s the South African bomb?), and of course, there are the Small Comets which strike the upper atmosphere continously.

http://www.freerepublic.com/focus/bloggers/1250694/posts

Louis Frank was hired to confirm what our early warning system for incoming nukes appeared to be seeing — upper atmosphere explosions which were natural and had to be differentiated from incoming Soviet missiles. Getting a second set of eyes working on this (without telling him why) helped all of us, but probably didn’t help his career.

http://www.freerepublic.com/focus/bloggers/1250694/posts?page=17#17


18 posted on 03/08/2013 6:33:46 PM PST by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
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To: John W

Good to know more than what is in the article. We started turning on a series of new asteroid telescopes in 2008.

http://www.technologyreview.com/news/411235/giant-camera-tracks-asteroids/

Pan-STAARS have been increasing the number of telescopes and data every year.

Canada just put up the first dedicated asteroid tracking satellite a few weeks ago.

http://www.allvoices.com/contributed-news/14096722-canada-launches-satellite-telescope-to-track-asteroids

We’ll start to see a lot more reports of smaller objects like this which we may have missed before or not gotten news.


19 posted on 03/08/2013 6:34:12 PM PST by mnehring
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To: dfwgator

I wasn’t really thinking about congress...


20 posted on 03/08/2013 6:38:21 PM PST by ilovesarah2012
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To: Yulee

An impactor a mile in diameter would destroy our civilization. Naturally the evacuation of our governing bodies to defended underground bunkers would be a necessity for the continuity of that civilization (such as it is).

Even if everyone knew where they were, the facilities are, er, would be expected to be essentially impregnable. And heavily defended.

What’s the matter, you haven’t been wondering why the gubmint has been buying trainloads of ammo?

;’)

Within a couple of hours, the entire surface of the Earth would be in complete darkness, and the clouds would persist for months to years.

The hydrologic cycle would slow to near-zero, thus all the water (which didn’t freeze at altitude) would over a matter of a week or two (for the longest rivers) run down to the oceans and there would be no rain or snow (give or take an impact on water) for months or years.

Anything unable to find water would be dead in a few days.

CO2 levels would rise (this is not even considering CO2 which might be the immediate result of the impact) due to lack of photosynthesis and fires ignited by both the flash from the impact and hot ejecta. Fires might rage for weeks, months, or in some places could at least smoulder for years.

Plant eaters would devour everything, then start to starve.

Nocturnal animals and predators would be out 24/7.

Dead plant eaters (and anything else that died) would be scavenged, repeatedly.

Every wild thing would be hungry, and so would every human when the stored food, game, and carrion ran out.

By the time the cloud cover finally went away for good, the animal and human populations would probably have dropped by over 90%. Some species would have ceased to exist.


21 posted on 03/08/2013 6:48:36 PM PST by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
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To: SunkenCiv; Revolting cat!; Slings and Arrows; JoeProBono
Not to worry. I've got it covered.

I think.

22 posted on 03/08/2013 7:03:50 PM PST by a fool in paradise (America 2013 - STUCK ON STUPID)
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To: SunkenCiv

So you’re saying we’ve got a chance?


23 posted on 03/08/2013 7:08:27 PM PST by John W (Viva Cristo Rey!)
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To: a fool in paradise

I’m old enough to remember owning and playing Parsec. Which means I’m old.


24 posted on 03/08/2013 7:12:19 PM PST by LostInBayport (When there are more people riding in the cart than there are pulling it, the cart stops moving...)
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To: a fool in paradise

25 posted on 03/08/2013 7:20:22 PM PST by JoeProBono (A closed mouth gathers no feet - Mater tua caligas exercitus gerit ;-{)
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To: LostInBayport
"I’m old enough to remember owning and playing Parsec. Which means I’m old."

But did you ever play "Tunnels of Doom" on the TI-99? It only took about 30 minutes to load from the cassette tape.

26 posted on 03/08/2013 7:22:39 PM PST by Flag_This (Real presidents don't bow.)
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To: SunkenCiv

The one over the Indian Ocean had the double flash that was detected by the “bhangmeter” on one of the Vela satellites. Only an atmospheric nuclear explosion can cause such a double flash - two light intensity spikes, separated by a period of time when the shock wave radius has some opacity blocking out the light of the fireball. The rate of increase in light intensity I (dI/dt) would be much higher than a meteor. The bhangmeter (a special photometer designed to detect such “double flashes”) can tell the difference.
South Africa did acknowledge having a nuclear program (remember, Cubans and Angolans acting as Soviet surrogates where making incursions into South Africa during the Cold War), and has dismantled their program.


27 posted on 03/08/2013 7:29:47 PM PST by Fred Hayek (The Democratic Party is now the operational arm of the CPUSA)
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To: BenLurkin

Are you, perhaps, suggesting that the sky is falling?


28 posted on 03/08/2013 8:06:19 PM PST by fhayek
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To: fhayek

We should be so lucky.


29 posted on 03/08/2013 8:44:25 PM PST by BenLurkin (This is not a statement of fact. It is either opinion or satire; or both)
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To: SunkenCiv
"It would not be difficult, Mein Führer."
"Nuclear reactors could - heh, I'm sorry, Mr. President - nuclear reactors could provide power almost indefinitely."
30 posted on 03/08/2013 8:53:41 PM PST by BenLurkin (This is not a statement of fact. It is either opinion or satire; or both)
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To: Flag_This
But did you ever play "Tunnels of Doom" on the TI-99?

My first computer dungeon crawl! Add I had the 32K (that's K, not M) memory expansion, so it rocked.

Good times...

31 posted on 03/08/2013 9:08:17 PM PST by Slings and Arrows (You can't have IngSoc without an Emmanuel Goldstein.)
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To: SunkenCiv
This Friday, a comet called Pan-STARRS will come into view over the Northern Hemisphere.


32 posted on 03/08/2013 9:13:00 PM PST by Rome2000 (THE WASHINGTONIANS AND UNIVERSAL SUFFRAGE ARE THE ENEMY -ROTATE THE CAPITAL AMONGST THE STATES)
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To: Yulee

If it’s big enough, and there are lots of them that are very big, there won’t be anywhere to hide. The survivors will envy the dead.


33 posted on 03/08/2013 9:46:17 PM PST by jmacusa (Political correctness is cultural Marxism. I'm not a Marxist.)
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To: Flag_This
But did you ever play "Tunnels of Doom" on the TI-99? It only took about 30 minutes to load from the cassette tape.

Tunnels of Doom! I spent untold hours in those dungeons. But our monitor was black and white.


34 posted on 03/09/2013 7:31:09 AM PST by LostInBayport (When there are more people riding in the cart than there are pulling it, the cart stops moving...)
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To: SunkenCiv
"...and the clouds would persist for months to years...The hydrologic cycle would slow to near-zero,..."

Hiya, SunkenCiv. I'm interested in this--your comment from earlier this month (march) in regards to more particles (including dry particles) in our atmosphere along with the recent low sun activity. We should be very near solar max now.

Any links or other resources would be helpful. I'm at over 9,000 feet on the Rockies, and here's what I've seen. As you probably know, at this elevation, we can more easily sense particulate atmospheric sun shading that is lighter (we'll call normal from our human-observation-time perspective) or heavier: what I'm seeing this winter.

About -24, F, last night here, just east of some peaks (roughly 25 degrees F lower than normal), BTW. During some of the sunnier days this winter, temperatures under glazed covers (larger covered areas--shed-sized or smaller, with only passive heating) were quite a bit lower with respect to outdoor temperatures than last winter by far (low-tech solar energy experiments here, building some collectors, installing modules, pumps, water tanks and transducers before long).

That's one of the reasons I'm interested in the possibility of cloud or other particulate matter slowing evaporation and precipitation cycles: something I paid too little attention to before. As you know, we're seeing unusually severe drought at this elevation, with recent previous droughts of such severity stopping short of this elevation (stopping, more or less, at around 8,000 feet, about an hour or so to the south of here in the drought of the 1930s). Can't find records of such thin upslope effect or high-altitude vegetation dying so much at this elevation (upslope effect happens only a few miles away on the west side of the top of the Divide. Another year, and we might start seeing thicker sand storms way up here. There are other reasons (other energy issues--e.g., electrical, agriculture, water issues, population movement issues and more). And well...okay, I'm a nerd. And I see some things up close, before people at lower elevations do. ;-)

So, any links or other referrals to information on natural, atmospheric sun blocks or low sun spot activity contributing to drought conditions? Thanks, if you have time. Some interesting recent weather patterns, eh?

I don't know whether we'll see more of these fluctuations from recent increases in volcanism, smoke, etc., but the possibly extended solar minimum situation is also of interest. I wonder what we might see in 3-6 years or so (drops to -50, -60, F, up here, perhaps?).


35 posted on 03/24/2013 10:50:27 AM PDT by familyop (We Baby Boomers are croaking in an avalanche of rotten politics smelled around the planet.)
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