Asteroids & Comets

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Message 1516092 - Posted: 14 May 2014, 17:43:22 UTC - in response to Message 1516073.  
Last modified: 14 May 2014, 17:48:18 UTC

only if all uncertainties are eliminated


There you said it. Science would not be Science if uncertainties predominated. Science has a wide spectrum of branches though in human language.

Science must be provable and repeatable otherwise it becomes political. We know that rocks have and will hit the Earth, that is science fact. We can't predict with enough certainty though when it will happen again so now it becomes more political than science.
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Message 1516094 - Posted: 14 May 2014, 17:45:14 UTC - in response to Message 1516092.  

only if all uncertainties are eliminated


There you said it. Science would not be Science if uncertainties predominated. Science has a wide spectrum of branches though in human language.

Science must be provable and repeatable otherwise it becomes political.


Political for you, 'Humanities' for me:)
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Message 1516102 - Posted: 14 May 2014, 17:54:56 UTC - in response to Message 1516094.  


Political for you, 'Humanities' for me:)

I may not agree with your 'Humanities', as they are not provable or predictable, but I will defend your right to think as you please.
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Message 1516107 - Posted: 14 May 2014, 18:00:40 UTC - in response to Message 1516102.  
Last modified: 14 May 2014, 18:02:17 UTC


Political for you, 'Humanities' for me:)

I may not agree with your 'Humanities', as they are not provable or predictable, but I will defend your right to think as you please.


Thank you:)

[edit] Same here. I do think 'empirical' means a lot.
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Message 1516110 - Posted: 14 May 2014, 18:05:54 UTC - in response to Message 1516107.  
Last modified: 14 May 2014, 18:07:11 UTC


[edit] Same here. I do think 'empirical' means a lot.

In the words of my neighbor. "You can observe a lot by just watching"; Yogi Berra.
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Message 1516234 - Posted: 14 May 2014, 21:05:23 UTC - in response to Message 1516227.  

Empirical means based on, concerned with, or verifiable by observation or experience rather than theory or pure logic.

Empirical evidence is information that justifies a belief in the truth or falsity of an empirical claim. In the empiricist view, one can claim to have knowledge only when one has a true belief based on empirical evidence. This stands in contrast to the rationalist view under which reason or reflection alone is considered to be evidence for the truth or falsity of some propositions.

The senses are the primary source of empirical evidence. Although other sources of evidence, such as memory, and the testimony of others ultimately trace back to some sensory experience, they are considered to be secondary, or indirect.



Really? Is that quote from Wikipedia? Evenin' Chris:) See ya next week:) but probably see you on the screen before that:) This isn't the Cafe Julie...
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Message 1516414 - Posted: 15 May 2014, 7:19:35 UTC

Thank you Chris:)
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Message 1520429 - Posted: 23 May 2014, 22:28:11 UTC - in response to Message 1516414.  

http://www.theguardian.com/science/2014/may/23/chelyabinsk-asteroid-collided-fragments-explosion


Chelyabinsk asteroid had collided with another asteroid

Analysis of fragments after explosion that injured 1,000 shows asteroid collision at 3,000mph about 290m years ago
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Message 1525652 - Posted: 7 Jun 2014, 18:54:02 UTC - in response to Message 1520429.  

Monster asteroid slated to zoom past Earth on Sunday

Asteroid 2014 HQ124, otherwise known as ‘The Beast,’ will safely pass about 770,000 miles above Earth this weekend. The asteroid is between 800 and 1,300 feet wide.

http://www.nydailynews.com/news/world/monster-asteroid-slated-zoom-earth-sunday-article-1.1820882
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Message 1525901 - Posted: 8 Jun 2014, 16:40:41 UTC

NASA says that both Goldstone and Arecibo antennas have been used as radars to track the orbit of this asteroid. This means that Arecibo is not in danger of being closed, it is too important in the watch for dangerous asteroids.
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Message 1531085 - Posted: 23 Jun 2014, 1:55:38 UTC - in response to Message 1525901.  

They're being likened to the Mona Lisa -- four fossil meteorites that may be linked to an ancient cosmic crash in the early universe.

Dr. Philipp Heck, curator of meteorites and polar studies at the Field Museum in Chicago, made the comparison to the iconic Leonardo da Vinci portrait -- and not without reason.

http://www.huffingtonpost.com/2014/06/21/fossil-meteorites-cosmic-collision_n_5513012.html
Rare Fossil 'Mona Lisa' Meteorites May Be Evidence Of Ancient Cosmic Collision
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Message 1539722 - Posted: 11 Jul 2014, 11:05:34 UTC

Not an asteroid but a comet, but anyway... 67P/Churyumov-Gerasimenko seems to be bean-shaped.

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Message 1556578 - Posted: 14 Aug 2014, 5:33:21 UTC - in response to Message 1539722.  

Potentially Dangerous Asteroid is Defying the Laws of Gravity

... well, sort of. Experts have determined that a massive asteroid that is due to orbit dangerously close to the Earth is actually composed of rubble spinning at an incredibly fast rate. Somehow, these surface rocks aren't tearing away from the whole to fly off into space, and astrophysicists are wondering why.

http://www.natureworldnews.com/articles/8539/20140813/potentially-dangerous-asteroid-defying-laws-gravity.htm
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Message 1557218 - Posted: 15 Aug 2014, 7:57:56 UTC - in response to Message 1556578.  

Potentially Dangerous Asteroid is Defying the Laws of Gravity

... well, sort of. Experts have determined that a massive asteroid that is due to orbit dangerously close to the Earth is actually composed of rubble spinning at an incredibly fast rate. Somehow, these surface rocks aren't tearing away from the whole to fly off into space, and astrophysicists are wondering why.

http://www.natureworldnews.com/articles/8539/20140813/potentially-dangerous-asteroid-defying-laws-gravity.htm



...asteroid has a one in 300 chance of striking the earth in the year 2880.


*check diary* It's alright Lynn, I'll be out that day... :)

Since then, new observations have corrected that chance to one in 19,800.


Intriguing! Thank you! :)
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Message 1557909 - Posted: 16 Aug 2014, 18:32:21 UTC - in response to Message 1557218.  

Huge asteroid set to wipe out life on Earth - in 2880
Kilometre-wide asteroid 1950 DA has a one-in-300 chance on 16 March, 2880, US scientists say

A huge asteroid spinning at an "impossible" rate is hurtling toward Earth, on track to wipe out human life - but not until 16 March, 2880.

Asteroid 1950 DA has a one-in-300 chance of hitting the globe on the appointed day. Although that may sound like slim odds, it is the most likely asteroid to collide with our planet.

http://www.telegraph.co.uk/news/worldnews/northamerica/usa/11037247/Huge-asteroid-set-to-wipe-out-life-on-Earth-in-2880.html
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Message 1557959 - Posted: 16 Aug 2014, 21:38:15 UTC - in response to Message 1557923.  

*check diary* It's alright Lynn, I'll be out that day... :)

I also have a prior engagement :-)


Yep, will be six feet under.
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Message 1564096 - Posted: 28 Aug 2014, 22:17:59 UTC - in response to Message 1558147.  

NASA's Spitzer Telescope Witnesses Asteroid Smashup

NASA's Spitzer Space Telescope has spotted an eruption of dust around a young star, possibly the result of a smashup between large asteroids. This type of collision can eventually lead to the formation of planets.

Scientists had been regularly tracking the star, called NGC 2547-ID8, when it surged with a huge amount of fresh dust between August 2012 and January 2013.

http://www.nasa.gov/press/2014/august/nasas-spitzer-telescope-witnesses-asteroid-smashup/

pic's :)
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Message 1567068 - Posted: 4 Sep 2014, 18:32:17 UTC - in response to Message 1564096.  

Newly found asteroid to pass close to Earth on Sunday

(CNN) -- A newly discovered asteroid will pass "very close" to Earth on Sunday, NASA says.

The space rock is estimated to be 60 feet (18 meters) long. It's expected to fly over New Zealand about 2:18 p.m. EDT (11:18 a.m. PDT / 18:18 UTC.)

It won't hit Earth or any of the thousands of satellites orbiting the planet, NASA says. It will give astronomers and scientists a chance to study it.

http://www.cnn.com/2014/09/04/tech/innovation/asteroid-flying-close-to-earth/index.html?hpt=hp_t2

It's the one they don't find that scares me.
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Message 1569247 - Posted: 8 Sep 2014, 17:58:46 UTC

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Message 1569381 - Posted: 8 Sep 2014, 22:37:41 UTC - in response to Message 1569247.  

Bang!
http://www.npr.org/blogs/thetwo-way/2014/09/08/346791538/meteor-leaves-40-foot-crater-near-managuas-airport


Thanks Gary!

Meteor Leaves 40-Foot Crater Near Managua's Airport

Updated at 11:45 p.m. ET

There was an unexpected crash landing near the international airport in the Nicaraguan capital over the weekend, but luckily no one was hurt: A small meteor, thought to have broken off from an Earth-passing asteroid, left a 40-foot-wide crater.

Have to watch those near miss asteroids.
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