Star Dies In Bright Supernova....

[Greg]

http://news.bbc.co.uk/1/hi/sci/tech/6633609.stm

[proflight2000]

Ok another dippy filled question, if this star is 250 million ly away, does this mean what the scientists saw happened 250 million years ago??

Thanks

[Jamie]

Yep thats just about the strength of it...

A lot of the pinpricks of light we see in the night sky don't exist anymore...

[mark.of.andromeda]

Yep thats just about the strength of it...

A lot of the pinpricks of light we see in the night sky don't exist anymore...

gives me a headacke just thinking about that

[Astroman]

When this star exploded, the dinosaurs were still the dominant lifeform on Earth. Wrap yer head 'round that one, chaps.

[Kai]

Makes you wonder what the sky looks like "Now" rather than looking at old light :?

[TheMightyKong]

If I understand it correctly (and I probably don't), there is no 'now' elsewhere. It only has meaning at one point, wherever you are.

[Jamie]

If I understand it correctly (and I probably don't), there is no 'now' elsewhere. It only has meaning at one point, wherever you are.

Not quite mate there is a "now" elsewhere its just that it was then that now existed. (wrap yer napper round that)

[Macavity]

I was quite intrigued to learn how much esp. Supernova Remnants can evolve on human time scales though. According to the "Turn Left..." Book, Messier probably wouldn't have bothered to "designate" the Crab Nebula as M1 (which apparently grows at 1" arc / 5 years), but for the fact that, ~200 years ago, it was perhaps twice as bright.

[TheMightyKong]

If I understand it correctly (and I probably don't), there is no 'now' elsewhere. It only has meaning at one point, wherever you are.

Not quite mate there is a "now" elsewhere its just that it was then that now existed. (wrap yer napper round that)

:shock: Jimmy Saville was right!!