Poderia ter sido mesmo o fim ?!?

Omega

Omega

Well-known member
Na constelação do Pégaso
NASA detecta tempestade estelar gigantesca

O satélite Swift da NASA detectou uma tempestade estelar centenas de milhões de vezes superior à de uma tempestade solar que, caso tivesse ocorrido no Sol, teria eliminado a vida na Terra, informou esta terça-feira a Agência Espacial norte-americana.

Detectada em Dezembro de 2005, a enorme explosão foi captada numa estrela de massa ligeiramente inferior à do Sol, num sistema binário chamado Pegasi II, na constelação de Pégaso, localizada a cerca de 135 anos-luz da Terra.

Segundo informou a NASA, a energia libertada pela tempestade estelar registada em Pegasi II foi equivalente a cerca de 50 mil milhões de bombas atómicas. O clarão gerado pelo fenómeno foi tão intenso que os cientistas pensaram ter assistido à explosão de uma estrela.

http://www.correiomanha.pt/noticia.asp?id=220306&p=200&idselect=21&idCanal=21
 
Se a espécie humana quer continuar a existir, "para sempre", o melhor é ir-se preparando para começar a espalhar-se pelo universo o quanto antes...
 
citação:Originalmente colocada por Pé Leve

Se a espécie humana quer continuar a existir, "para sempre", o melhor é ir-se preparando para começar a espalhar-se pelo universo o quanto antes...
Clique para expandir...

:(

Não dÊs ideias!!!!

Já não chega o TGV????? [xx(] [:p]
 
Pé Leve, fazemos assim: tu ficas encarregue da exploração e essas cenas e eu trato da situação de procriar para assegurar a existência!
 
citação:Originalmente colocada por Jacare

citação:Originalmente colocada por Pé Leve

Se a espécie humana quer continuar a existir, "para sempre", o melhor é ir-se preparando para começar a espalhar-se pelo universo o quanto antes...
Clique para expandir...

:(

Não dÊs ideias!!!!

Já não chega o TGV????? [xx(] [:p]
Clique para expandir...
O Pé Leve estava a falar de espécie humana, não em políticos :D.
 
citação:Originalmente colocada por Nthor

citação:Originalmente colocada por Jacare

citação:Originalmente colocada por Pé Leve

Se a espécie humana quer continuar a existir, "para sempre", o melhor é ir-se preparando para começar a espalhar-se pelo universo o quanto antes...
Clique para expandir...

:(

Não dÊs ideias!!!!

Já não chega o TGV????? [xx(] [:p]
Clique para expandir...
O Pé Leve estava a falar de espécie humana, não em políticos :D.
Clique para expandir...
Exactamente! Políticos? Livra...:D
 
citação:Originalmente colocada por Nthor


O Pé Leve estava a falar de espécie humana, não em políticos :D.
Clique para expandir...

Nop, os políticos só existem na espécie humana... e por isso devem ser os primeiros a entrar na nave e abandonar o planeta rumo a estrelas distantes...

(e eu que nem sou anarquista... [8)])
 
citação:Originalmente colocada por Pé Leve

citação:Originalmente colocada por Nthor

citação:Originalmente colocada por Jacare

citação:Originalmente colocada por Pé Leve

Se a espécie humana quer continuar a existir, "para sempre", o melhor é ir-se preparando para começar a espalhar-se pelo universo o quanto antes...
Clique para expandir...

:(

Não dÊs ideias!!!!

Já não chega o TGV????? [xx(] [:p]
Clique para expandir...
O Pé Leve estava a falar de espécie humana, não em políticos :D.
Clique para expandir...
Exactamente! Políticos? Livra...:D
Clique para expandir...

bem se podia mandar alguns para uma Supernova prestes a explodir.
 
Um gajo pensa que o fim do mundo é so nos filmes e em sonhos e qualquer dia isto vai tudo pelos ares........ é mesmo muito estranho uma pessoa fica a pensar isto é bem real
 
citação:Originalmente colocada por Pé Leve

E quantas vezes sem o sabermos teremos estado em risco?...
Clique para expandir...
Near misses and forecasts

On 19 May 1996 </u>a 300–500-m asteroid, 1997 JA1, passed within 450,000 km of Earth; it had been detected a few days before.

On 18 March 2004 </u>a 30-m asteroid, 2004 FH, passed within 40,000 km of Earth only a few days after it had been detected. This asteroid probably would have detonated in the atmosphere and posed negligible hazard to the surface, had it been on impact course.

On 31 March 2004</u>, a 6m meteoroid, 2004 FU162 made the closest near miss pass ever observed with a separation of only 1.02 Earth radii from the surface (6,500 km). Because this object is certainly too small to pass through the atmosphere, it is classed as a meteoroid rather than an asteroid.

In 2004, a newly discovered 320-m asteroid, 99942 Apophis (previously called 2004 MN4), achieved the highest impact probability of any potentially dangerous object. The probability of collision on 13 April 2029 was estimated to be as high as 1 in 17 </u>by Steve Chesley of NASA's Jet Propulsion Laboratory though the worst published figure was 1 in 37 calculated in December 2004. Later observations showed that the asteroid will miss the earth by 25,600 km (within the orbits of communications satellites) in 2029, but its orbit will be altered unpredictably in a way which does not rule out a collision on 13 or 14 April 2035 or later in the century. These possible future dates have a cumulative probability of 1 in 6000 for an impact in the 21stcentury.

Asteroid 2004 VD17, of 580 m, is estimated as of July 2006 to have a probability of 1 in 63,000 of striking the earth on 4 May 2102, with risk 1 on the Torino scale, although further observations will refine the estimate.

Relatively small objects that burn up in the atmosphere can be dangerous beyond their own capabilities. In 2002, U.S. Air Force Brig. Gen. Simon P. Worden told members of a U.S. House of Representatives Science subcommittee that the U.S. has instruments that determine if an atmospheric explosion is natural or man-made, but no other nation with nuclear weapons has that detection technology. He said there is concern that some of those countries could mistake a natural explosion for an attack, and launch nuclear retaliation. In the summer of 2001 U.S. satellites had detected over the Mediterranean an atmospheric flash of energy similar to a nuclear weapon, but determined that it was caused by an asteroid.


[edit] End of civilization
An impact event is commonly seen as a scenario[1] [2] that would bring about the end of civilization. In 2000, Discover Magazine published a list of 20 likely end of the world scenarios with impact event listed as the number one most likely to occur.[3] Until the 1980s this idea was not taken seriously, but all that changed after the discovery of the Chicxulub Crater which was further reinforced by witness to the Comet Shoemaker-Levy 9 event. Since then there has been a lot more interest and funding of studies.

http://en.wikipedia.org/wiki/Impact_event

A velha wiki:).
 
citação:Originalmente colocada por J.R.

citação:Originalmente colocada por Pé Leve

E quantas vezes sem o sabermos teremos estado em risco?...
Clique para expandir...
Near misses and forecasts

On 19 May 1996 </u>a 300#8211;500-m asteroid, 1997 JA1, passed within 450,000 km of Earth; it had been detected a few days before.

On 18 March 2004 </u>a 30-m asteroid, 2004 FH, passed within 40,000 km of Earth only a few days after it had been detected. This asteroid probably would have detonated in the atmosphere and posed negligible hazard to the surface, had it been on impact course.

On 31 March 2004</u>, a 6m meteoroid, 2004 FU162 made the closest near miss pass ever observed with a separation of only 1.02 Earth radii from the surface (6,500 km). Because this object is certainly too small to pass through the atmosphere, it is classed as a meteoroid rather than an asteroid.

In 2004, a newly discovered 320-m asteroid, 99942 Apophis (previously called 2004 MN4), achieved the highest impact probability of any potentially dangerous object. The probability of collision on 13 April 2029 was estimated to be as high as 1 in 17 </u>by Steve Chesley of NASA's Jet Propulsion Laboratory though the worst published figure was 1 in 37 calculated in December 2004. Later observations showed that the asteroid will miss the earth by 25,600 km (within the orbits of communications satellites) in 2029, but its orbit will be altered unpredictably in a way which does not rule out a collision on 13 or 14 April 2035 or later in the century. These possible future dates have a cumulative probability of 1 in 6000 for an impact in the 21stcentury.

Asteroid 2004 VD17, of 580 m, is estimated as of July 2006 to have a probability of 1 in 63,000 of striking the earth on 4 May 2102, with risk 1 on the Torino scale, although further observations will refine the estimate.

Relatively small objects that burn up in the atmosphere can be dangerous beyond their own capabilities. In 2002, U.S. Air Force Brig. Gen. Simon P. Worden told members of a U.S. House of Representatives Science subcommittee that the U.S. has instruments that determine if an atmospheric explosion is natural or man-made, but no other nation with nuclear weapons has that detection technology. He said there is concern that some of those countries could mistake a natural explosion for an attack, and launch nuclear retaliation. In the summer of 2001 U.S. satellites had detected over the Mediterranean an atmospheric flash of energy similar to a nuclear weapon, but determined that it was caused by an asteroid.


[edit] End of civilization
An impact event is commonly seen as a scenario[1] [2] that would bring about the end of civilization. In 2000, Discover Magazine published a list of 20 likely end of the world scenarios with impact event listed as the number one most likely to occur.[3] Until the 1980s this idea was not taken seriously, but all that changed after the discovery of the Chicxulub Crater which was further reinforced by witness to the Comet Shoemaker-Levy 9 event. Since then there has been a lot more interest and funding of studies.

http://en.wikipedia.org/wiki/Impact_event

A velha wiki:).
Clique para expandir...
Exactamente!:)
 
Deve fazer início de sessão ou registar-se para responder aqui.
Voltar
Superior