On 12 Juli, 22:26, "Androcles" wrote:
wrote in message

...
On 12 Juli, 21:38, "Androcles" wrote:





wrote in message

....
| Sirius B evidently did go Nova 120 million years ago, it is only 8.6
| light years away how could anything on earth survived such a
| blast.....

A nuclear weapon exploded over Hiroshima, Japan, on 6th August, 1945.
How could anything in the USA have survived such a blast.....

|
| Krita started 146 milj ago and ended 86 milj years ago?
|
| Is this correct?

No.

Oh you are correct Androcles it was 65 miljon years ago
But the the Triassic–Jurassic extinction event marks the boundary
between the Triassic and Jurassic periods, 199.6 million years ago,
and is one of the major extinction events.

I do not know but i see the possibility for some doubts in carbon
dating, and also when it comes to put dates on events within
astronomy. I find it reasonably to beleive that Sirius B was cause to
the Triassic-Jurassic extinction.
============================================

Whoopee for you. yawn
Now prove it.
I find it reasonably to believe that bright green flying elephants lay their
eggs in black holes but I do not know and I can't prove it... and you
are not really interested. Let's prove Santa Claus comes down chimneys
instead, we can both believe that one.- Dölj citerad text -

- Visa citerad text -

Well "SCIENTISTS" tells that if Betelgeuse goes Nova and if it's
rotational axis aligned our way we would be in very difficult position
and alot of life on earth would actually threatened. It is 427
lightyears away.

Wikipedia:Betelgeuse
"Since its rotational axis is not toward the Earth, it is believed
that Betelgeuse's supernova would not cause a gamma ray burst in the
direction of Earth large enough to damage Earth's ecosystem even with
its relatively close proximity of 427 light years."

Now ALDEBARAN is only 65 millions away and i have a feeling that if it
go Nova we are ****ed,
Now you prove me wrong and you will not find it that easy.

So if you have a better bet for the great extinctions then supernovas
tell me.
I do not find it unreasonable that asteroids caused the great
"extinctions", and i do not find it unreasonable that supernovas did
it either.

I understand though that it give more comfort beleiving that they were
caused by asteroids.