Just thought that some of you might find it cool as Betelgeuse which is about 600 light years away, which is a red giant is showing instability and is heading to super nova. Well it did about 600 years ago, but the imagery is reaching us.
Part prediction, but there's no question of the activity that's happening now.
I think that the last supernova seen from earth was about 400 years ago. So this is a game changer for the ordinary person.
And that one was estimated to be about 20,000 light years from Earth. It was bright enough to be visible in the sky during the day time.
The brightest supernova recorded was in 1006 and was estimated to be about 7,000 light years away.
I assume there is more into the brightness and visibility than just how close it is to Earth, but I would also have to assume that one only 600 light years away will show up pretty good.
__________________
"A pessimist thinks things can't get any worse. An optimist knows they can."
It would be cool if it went off in my lifetime.. close enough to be cool, not so close as to strip the earth of its atmosphere.
I haven't read it, but that reminds of the book Supernova Era by the same guy that wrote the Three-body Problem series. In that book a nearby star explodes, floods the earth with radiation, resulting in everyone over 13 having one year to live.
The Following User Says Thank You to pseudoreality For This Useful Post:
It would be cool if it went off in my lifetime.. close enough to be cool, not so close as to strip the earth of its atmosphere.
Our atmosphere will likely be fine but Tyson and other astrophysicists are a little worried the blast could be close enough to disrupt the comets and asteroids normal orbits to a point where earth would be a shooting gallery.
These fossils, along with the remains of warm-water species, suggest that the arctic was once ice-free and had a climate similar to today’s subtropics, according to the study.
At the start of every Lindsay Nicole video in her history of life on earth as we know it, she starts with going through the environmental conditions of that era. And for a lot of very early earth, there was no such thing as arctic conditions.
__________________
My name is Ozymandias, King of Kings;
Wasn’t our subarctic at different latitudes in the past due to continental drift?
Not vastly different in terms of north/south movement. Since the Cretaceous it has mostly been the opening of the Atlantic with Europe and Africa moving away from North America.
With the continents all drifting this way and that, what happens when one of them gets to the edge? Do they just kinda fall off like a cat playing with a tea cup on desk?
