That was my first thought also - did the supernova shatter a star, or is the supernova literally the result of a star shattering?
Both could be true, it could be that a star went supernova, then the shockwave shattered a star. I CBA to read into it and I’m hoping someone will reply with the answer.
I wasn’t even thinking a binary system necessarily, just a star that happened to take the shockwave badly. But I suppose it would make more sense for that to happen the closer the nearby star is.
I would love to see the cost/feasibility of boosting to a stable/graveyard orbit. The ISS is massive and not built for that kind of maneuver, but it would be great to be able to preserve it for the future.
It’s too old to be retrofitted and it wasn’t designed to last forever.
The computer systems on board controlling all the essential systems, I’d have to assume given the age of the station and when everything was designed, they’d have used 32 bit computing tech because that was what was prevalent when the station launched.
A lot of people say “boost it into graveyard orbit” but another problem is that physically it was not designed to last forever, and just over general wear and tear, it will begin to disintegrate and rain fragments, so it is much safer to deorbit and decomm.
Just unfortunate that it can’t be preserved as a space-tourism destination or something of the sort. Would be neat if it was made into a museum something
Wave/Particle duality of quantum objects (quanta) is a bit like bicycle/car duality when looking at motorcycles. Light isn’t a wave or a particle, but it has properties of both. Motorcycles aren’t pedal-powered bikes or cars, but have properties of both.
Right - that’s what I’m saying. But this article seems to think that if you make a bicycle out of cars then you have a motorcycle… Unless I’m not understanding it.
AFAIK gravity waves are ripples in actual space (mechanical waves) - not a property of “gravitons”.
Gravitons are the name for the quanta of the (hypothetical) quantum gravitational field. They’d be the force carriers of the gravitational force in a theory of quantum gravity, if we had one.
Gravitational waves would still be physical waves like water waves, and they’d be composed of moving gravitons. Spacetime would likely be quantized instead of continuous; this becomes very hard to resolve since quantum mechanics needs to be reformulated to use discrete math instead of calculus, and we don’t really know how to do that (non-uniform spacetime breaks QM).
They seem to think the gravity waves are a property of gravitons.
The article talks about gravitational waves, not gravity waves. It is believed that gravitational radiation is similar to electromagnetic radiation. This would mean that gravitational waves are made up of particles called gravitons. But as the article says, we don't know that for sure because we haven't been able to detect gravitons yet.
maybe space is the graviton field itself(!), but maybe there is a graviton field (or is it the Higgs field?) and gravitons (and Higgs particles?) are excitations of that field; like other particles are excitations of their various postulated quantum fields
Gravitational waves are not 'mechanical waves'. It is thought that gravitational radiation is a lot like electromagnetic radiation. Therefore gravitational waves might work like light waves, and have a particle like light does.
When it comes to duality it’s the particles that exhibit wave-like properties individually.
And waves exhibit particle behavior because waves are particles and particles are waves. Light comes in waves. But when we see light it doesn't mean we are seeing a single light photon.
Wouldn’t be the first time and prolly won’t be the last time.
Jamestown.
Jamestowne is home to the ruins of the first permanent English settlement in North America.
104 settlers but only 38 survived
Despite writing describing cannibalism:
“Haveinge fedd upon our horses and other beastes as longe as they Lasted, we weare gladd to make shifte with vermin as doggs Catts, Ratts and myce…as to eate Bootes shoes or any other leather,” he wrote. “And now famin beginneinge to Looke gastely and pale in every face, thatt notheinge was Spared to mainteyne Lyfe and to doe those things which seame incredible, as to digge upp deade corpes outt of graves and to eate them. And some have Licked upp the Bloode which hathe fallen from their weake fellowes.”
Direct evidence of cannibalism at Jamestown, the oldest permanent English colony in the Americas was elusive until recently finding “bones in a trash pit, all cut and chopped up, it’s clear that this body was dismembered for consumption.”
For those that know about trails and the ease of removing them from images through stacking as I thought, it isn’t about that, despite the cover image. It’s about momentary glints disrupting searches for momentary events. Not too much more to the article though, just raising awareness
astronomy
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