My Assistant
Near-future Extinction Event ? |
| Guest_PhilCo126_* |
Dec 9 2005, 08:16 AM
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Guests |
The Near-Earth Asteroid 99942 Apophis ( former designation 2004 MN4 ) was headline news again this week both in Newspapers & TV news. Observations pointed out that the Asteroid climbed a bit higher on the Torino impact hazard scale ( equivalent cosmic ‘Richter’ scale ) and could hit the Earth ( Southern Hemisphere ) on April 13, 2036 ( a Friday 13th I believe ).
Anyway, Apophis should pass between the Moon & Earth ( distance 250.000 KM ) in April 2029 … an amazing sight visible from Europe! Interesting to know is the fact that European Space Agency ESA plans a mission to find out if an asteroid could be deflected from its course ( Don Quichote mission: Hidalgo is an impacter & Sancho is the observer probe ). American astronauts LU & LOVE wrote a paper in NATURE about a tug-rocket and NASA is making plans for a mission called ‘ The Son of Deep Impact ‘ … to be continued… More on the Asteroid at: http://www.esa.int/gsp/ACT/mission_analysis/asteroid.htm Philip |
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PhilCo126 Near-future Extinction Event ? Dec 9 2005, 08:16 AM
Rob Pinnegar I guess these guys must be pretty certain about th... Dec 9 2005, 10:03 AM
ljk4-1 Paper: astro-ph/0512204
Date: Thu, 8 Dec 2005 05:... Dec 9 2005, 06:17 PM

Richard Trigaux QUOTE (ljk4-1 @ Dec 9 2005, 06:17 PM)Pap... Dec 9 2005, 07:15 PM
Richard Trigaux QUOTE (Rob Pinnegar @ Dec 9 2005, 10:03 AM)I ... Dec 9 2005, 07:19 PM
JRehling QUOTE (Richard Trigaux @ Dec 9 2005, 11:19 AM... Dec 9 2005, 07:27 PM
dvandorn QUOTE (JRehling @ Dec 9 2005, 01:27 PM)If a b... Dec 10 2005, 02:01 AM
Richard Trigaux QUOTE (dvandorn @ Dec 10 2005, 02:01 AM)I wou... Dec 10 2005, 11:40 AM
RNeuhaus I have read a paper about "Gravitation Tract... Dec 9 2005, 07:37 PM
RNeuhaus Urge to Merge: Here Comes Andromeda
The above ar... Dec 9 2005, 08:13 PM
tty QUOTE (RNeuhaus @ Dec 9 2005, 10:13 PM)Urge t... Dec 10 2005, 05:02 PM
mike You mean to say that eventually we'll all die ... Dec 9 2005, 10:22 PM
Richard Trigaux Important things in the discutio above, JRehling,... Dec 10 2005, 10:29 AM
tty QUOTE (Richard Trigaux @ Dec 10 2005, 12:29 P... Dec 10 2005, 05:22 PM

Bob Shaw I hate to point out a grim and downright unsettlin... Dec 10 2005, 06:17 PM


Richard Trigaux QUOTE (Bob Shaw @ Dec 10 2005, 06:17 PM)I hat... Dec 11 2005, 12:53 PM


dvandorn QUOTE (Richard Trigaux @ Dec 11 2005, 06:53 A... Dec 11 2005, 08:20 PM

Richard Trigaux QUOTE (tty @ Dec 10 2005, 05:22 PM)Actually t... Dec 11 2005, 12:28 PM

JRehling QUOTE (tty @ Dec 10 2005, 09:22 AM)Actually t... Dec 11 2005, 05:44 PM

Richard Trigaux QUOTE (JRehling @ Dec 11 2005, 05:44 PM)Two b... Dec 11 2005, 06:08 PM
dvandorn QUOTE (Richard Trigaux @ Dec 10 2005, 04:29 A... Dec 11 2005, 02:51 AM
mchan QUOTE (dvandorn @ Dec 10 2005, 06:51 PM)Actua... Dec 11 2005, 03:37 AM
tty QUOTE (dvandorn @ Dec 11 2005, 04:51 AM)Actua... Dec 12 2005, 07:54 PM
tfisher QUOTE (PhilCo126 @ Dec 9 2005, 04:16 AM)The N... Dec 10 2005, 03:24 PM
PhilCo126 Well the diameter of Apophis is 320 meter so it wo... Dec 10 2005, 06:23 PM
mike It could be that if a few more species become exti... Dec 10 2005, 08:56 PM
Tom Ames QUOTE (mike @ Dec 10 2005, 03:56 PM)It could ... Dec 13 2005, 01:38 AM
Bob Shaw QUOTE (Tom Ames @ Dec 13 2005, 02:38 AM)Yeah,... Dec 14 2005, 11:09 PM
BruceMoomaw Yep -- remember that deafening series of "exp... Dec 11 2005, 06:34 AM
mike If I weren't at least a little selfish, I... Dec 11 2005, 09:41 PM
BruceMoomaw We're getting rather off the subject here; but... Dec 11 2005, 09:46 PM
PhilCo126 An impact on the Moon would be an amazing sight ..... Dec 12 2005, 08:04 AM
Richard Trigaux QUOTE (PhilCo126 @ Dec 12 2005, 08:04 AM)An i... Dec 12 2005, 08:25 AM
Richard Trigaux Dvandorn and BruceMoomaw,
my point was certainly ... Dec 12 2005, 08:52 AM
dvandorn And on this, Richard, we must agree to disagree. ... Dec 12 2005, 09:18 AM
Richard Trigaux QUOTE (dvandorn @ Dec 12 2005, 09:18 AM)And o... Dec 12 2005, 09:48 AM
ljk4-1 QUOTE (Richard Trigaux @ Dec 12 2005, 04:48 A... Dec 12 2005, 02:34 PM
RNeuhaus Setting back to the topic, after a nuke explotion ... Dec 12 2005, 02:27 PM
BruceMoomaw Believe me, when the human race starts modifying t... Dec 12 2005, 09:52 PM
tty QUOTE (BruceMoomaw @ Dec 12 2005, 11:52 PM)Be... Dec 12 2005, 10:21 PM
BruceMoomaw While we're on this cheery subject: I've a... Dec 12 2005, 09:56 PM
ljk4-1 QUOTE (BruceMoomaw @ Dec 12 2005, 04:56 PM)Wh... Dec 12 2005, 10:23 PM
Bob Shaw QUOTE (BruceMoomaw @ Dec 12 2005, 10:56 PM)Wh... Dec 12 2005, 11:14 PM
tuomio Great power brings great responsibilities. Ongoing... Dec 12 2005, 10:38 PM
mike Eh, the whole 'technology is bad' issue co... Dec 12 2005, 10:44 PM
BruceMoomaw "Cheer up -- it's largely a one-generatio... Dec 13 2005, 01:27 AM
BruceMoomaw As for "Gaia being a superorganism that delib... Dec 13 2005, 01:31 AM
ljk4-1 QUOTE (BruceMoomaw @ Dec 12 2005, 08:31 PM)As... Dec 14 2005, 08:58 PM

JRehling The real hope for our civilization is that science... Dec 14 2005, 10:53 PM


Richard Trigaux QUOTE (JRehling @ Dec 14 2005, 10:53 PM)The r... Dec 15 2005, 09:59 AM


JRehling QUOTE (Richard Trigaux @ Dec 15 2005, 01:59 A... Dec 15 2005, 05:40 PM


Richard Trigaux QUOTE (JRehling @ Dec 15 2005, 05:40 PM)I qui... Dec 15 2005, 07:49 PM

Richard Trigaux QUOTE (ljk4-1 @ Dec 14 2005, 08:58 PM)Yo... Dec 15 2005, 09:52 AM


ljk4-1 QUOTE (Richard Trigaux @ Dec 15 2005, 04:52 A... Dec 15 2005, 03:15 PM

lyford QUOTE (ljk4-1 @ Dec 14 2005, 12:58 PM)Yo... Dec 15 2005, 08:18 PM
Bob Shaw QUOTE (BruceMoomaw @ Dec 13 2005, 02:31 AM)As... Dec 14 2005, 11:22 PM
dvandorn In re the "good vs. evil" issue -- I thi... Dec 13 2005, 07:12 AM
mike Eh, you guys are just afraid that humanity might a... Dec 13 2005, 05:26 PM
Richard Trigaux Cheap cabaret philosophy just to continue doing no... Dec 13 2005, 07:16 PM
tty QUOTE (Richard Trigaux @ Dec 13 2005, 09:16 P... Dec 13 2005, 10:08 PM
Richard Trigaux QUOTE (tty @ Dec 13 2005, 10:08 PM)Causing an... Dec 14 2005, 11:24 AM
RNeuhaus QUOTE (Richard Trigaux @ Dec 14 2005, 06:24 A... Dec 14 2005, 05:26 PM
lyford Rodolfo -
I agree completely - we should be enth... Dec 14 2005, 07:21 PM
RNeuhaus The paragraph was extracted from http://www.space.... Dec 14 2005, 09:01 PM
Richard Trigaux QUOTE (RNeuhaus @ Dec 14 2005, 09:01 PM)That ... Dec 15 2005, 09:56 AM
RNeuhaus QUOTE (Richard Trigaux @ Dec 15 2005, 04:56 A... Dec 15 2005, 02:48 PM
BruceMoomaw "With enough diffuse speculation, how can any... Dec 15 2005, 11:36 AM
JRehling QUOTE (BruceMoomaw @ Dec 15 2005, 03:36 AM)... Dec 15 2005, 05:29 PM
mike QUOTE (BruceMoomaw @ Dec 15 2005, 03:36 AM)... Dec 15 2005, 06:12 PM
Chmee QUOTE (BruceMoomaw @ Dec 15 2005, 07:36 AM)... Dec 15 2005, 06:22 PM
dvandorn This is something that we need to spend some time ... Dec 15 2005, 05:11 PM
BruceMoomaw OK; but then, when the Sacred Asteroidal Republic ... Dec 15 2005, 06:13 PM
BruceMoomaw And in response to Mike: why should I go to the tr... Dec 15 2005, 06:20 PM
mike QUOTE (BruceMoomaw @ Dec 15 2005, 10:20 AM)An... Dec 15 2005, 08:13 PM
BruceMoomaw Well, while we really ARE geting off the subject o... Dec 15 2005, 09:19 PM
mike Avoided nuclear war by 'a succession of miracl... Dec 15 2005, 10:41 PM
BruceMoomaw So who's complaining? Why complain about the ... Dec 15 2005, 10:51 PM
BruceMoomaw P.S.: Regarding the fact that we've avoided nu... Dec 15 2005, 10:59 PM
tty QUOTE (BruceMoomaw @ Dec 16 2005, 12:59 AM)P.... Dec 16 2005, 08:39 PM
mike By calling them 'miracles' you are acknowl... Dec 16 2005, 12:59 AM
lyford Don't forget these narrowly avoided rays of su... Dec 16 2005, 01:42 AM
BruceMoomaw Yeah, Lyford, I didn't mention the narrow Indi... Dec 16 2005, 02:42 AM
mike It certainly does seem to be easier to destroy tha... Dec 16 2005, 03:55 PM
ljk4-1 Humanity will survive for the same reason American... Dec 16 2005, 04:28 PM
chris Nick Bostrom from the University of Oxford Philoso... Dec 16 2005, 04:50 PM
BruceMoomaw More on Lyford's question at http://www.lpi.us... Dec 16 2005, 11:00 PM
lyford Thanks Bruce - interesting
QUOTE Here we consider ... Dec 17 2005, 12:19 AM
Bob Shaw Bruce:
Perhaps we should *encourage* all sorts of... Dec 17 2005, 12:43 AM
edstrick Note that Cis-Lunar manned transportation capacity... Dec 17 2005, 06:33 AM
ustrax Nice thing to play with...
http://www.lpl.arizo... Jan 5 2006, 04:01 PM
ljk4-1 THE COMING DARK AGE
Newsletter
December, 2005
1... Jan 5 2006, 10:10 PM
ustrax QUOTE (ljk4-1 @ Jan 5 2006, 10:10 PM)THE... Jan 5 2006, 11:16 PM
ljk4-1 A NEO to monitor:
http://neo.jpl.nasa.gov/risk/20... Jan 9 2006, 03:43 PM
ljk4-1 TOP STORIES
COMETS & ASTEROIDS - our new Spec... Feb 16 2006, 05:57 PM
ljk4-1 STELLAR CHEMISTRY
- Killer GRB Unlikely In The Ga... Apr 19 2006, 02:54 PM
Richard Trigaux Interesting result. But it eliminates the only sim... Apr 19 2006, 06:26 PM
ljk4-1 We are not really prepared to stop a space rock fr... Apr 25 2006, 03:02 PM
Richard Trigaux To deflect an asteroid, we would need the equivale... Apr 25 2006, 03:19 PM
Bob Shaw Richard:
The 'gravitational tractor' conc... Apr 25 2006, 04:09 PM
Richard Trigaux The gravitation is a very weak force, and a gravit... Apr 25 2006, 04:28 PM![]() ![]() |
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