Any astro-physicists around?

[cee-dee]

I've been thinking (OK, OK, I know that's a bad idea but....) we're told a Black Hole (in space) was formed by the collapse of a huge star? Before the collapse, the huge star could be seen? So, if the light from the huge star could have been seen OK then, how is it that after the collapse/explosion/super nova, nothing can be seen?

If the gravity of the Black Hole is such that nothing can escape, not even light, how come light could have been seen from the star before it's demise? Surely the gravity from the huge star should have been the same or more powerful when the star was still in existence as a star?

[*knight-rider*]

Slightly off topic, but i took this photo tonight, looking west from my window, showing Venus and Jupiter in the sky.

Sorry about the photo, i don`t have the best camera in the world.

[cee-dee]

Well done, you captured them anyway.

[chickendevil_comix]

as an Astro-Physicist I am fully aware that the light from the collapsed star could still be viewed by us even after the sun has been transformed into a Black Hole... we are seeing the cosmic radiation from long-ago, not the dark matter that is currently exuding from the Event Horizon, which could have been a good Sci-Fi / Horror movie except that it relied on Sam Neil in Hellraiser make-up to be the obligatory scary monster & that just isn't going to happen, there is nothing remotely scary about Sam Neil, even when he was portraying the AntiChrist in Omen III the best he could manage was to be mildly sinister... I hope that this answers your question? 

-CD_c

[cee-dee]

No it doesn't even come close. Also, the Sun is too small to collapse in to a Black hole.

Leaving aside science fiction... I think we are "too big" to do anything like space travel. First of all what spacecraft we have at the moment are far, far too slow and anyway, travelling at the speed of light is too slow to travel any distance in space. Not only that, if ever travel faster than the speed of light became possible, the acceleration needed would be far, far too much for our bodies to withstand.

Soooo, I think the only creatures able to withstand such forces would have to be very, very small. verging on microscopic.

[chickendevil_comix]

microscopic creatures?  you are, of course, referring to the Space Gnomes?  while it is true that they utilise 'atomic broom' technology to sweep cosmic particles from the path of their solar-powered canoes, this is still a relatively slow form of celestial travel when compared with, say, the gaseous-anomaly banana-shaped interdimensional warpcraft of the Reptillions... besides, weren't you speculating about Black Holes?  you seem to have gone on a bit of a tangent.  astro-physics is a serious discipline & not everyone can grasp the full implication of its theoretical potentials.