Jupiter might very well have fecked Venus over, and they're more than 575 million miles away from each other at their farthest.
Astronomy & Space Exploration
- Thread starter MrMarcello
- Start date
That flew so far over my head I think it passed a few black holes.
It will fly over nearly everyone's head given its a concept still in its relative infancy.
The clue is in the name, it's dark because it's never been detected, we don't even know it anything like it actually exists and is pure inference to make the numbers match observations.
21st century epicycles.
Yes same here. About as understandable as String Theory.
String theory is easy.
Very good.
(I cannot find any "general science/physics" thread... )
https://www.theguardian.com/science...icist-who-discovered-higgs-boson-dies-aged-94
Peter Higgs, physicist who proposed Higgs boson, dies aged 94
Nobel-prize winning physicist who showed how particle helped bind universe together died at home in Edinburgh
Peter Higgs, the Nobel prize-winning physicist who proposed a new particle known as the Higgs boson, has died.
Higgs, 94, who was awarded the Nobel prize for physics in 2013 for his work in 1964 showing how the boson helped bind the universe together by giving particles their mass, died at home in Edinburgh on Monday.
After a series of experiments, which began in earnest in 2008, his theory was proven by physicists working at the Large Hadron Collider at Cern in Switzerland in 2012; the Nobel prize was shared with François Englert, a Belgian theoretical physicist whose work in 1964 also contributed directly to the discovery.
[...]
The Royal Swedish Academy of Sciences, which awards the Nobel, said at the time the standard model of physics which underpins the scientific understanding of the universe “rests on the existence of a special kind of particle: the Higgs particle. This particle originates from an invisible field that fills up all space.
“Even when the universe seems empty this field is there. Without it, we would not exist, because it is from contact with the field that particles acquire mass. The theory proposed by Englert and Higgs describes this process.”
[...]
https://www.theguardian.com/science...icist-who-discovered-higgs-boson-dies-aged-94
Peter Higgs, physicist who proposed Higgs boson, dies aged 94
Nobel-prize winning physicist who showed how particle helped bind universe together died at home in Edinburgh
Peter Higgs, the Nobel prize-winning physicist who proposed a new particle known as the Higgs boson, has died.
Higgs, 94, who was awarded the Nobel prize for physics in 2013 for his work in 1964 showing how the boson helped bind the universe together by giving particles their mass, died at home in Edinburgh on Monday.
After a series of experiments, which began in earnest in 2008, his theory was proven by physicists working at the Large Hadron Collider at Cern in Switzerland in 2012; the Nobel prize was shared with François Englert, a Belgian theoretical physicist whose work in 1964 also contributed directly to the discovery.
[...]
The Royal Swedish Academy of Sciences, which awards the Nobel, said at the time the standard model of physics which underpins the scientific understanding of the universe “rests on the existence of a special kind of particle: the Higgs particle. This particle originates from an invisible field that fills up all space.
“Even when the universe seems empty this field is there. Without it, we would not exist, because it is from contact with the field that particles acquire mass. The theory proposed by Englert and Higgs describes this process.”
[...]
I loved that he got the highest award so long after his theory was proposed. The ultimate vindication. What a legend and a really good age to live to. RIP
https://www.bbc.co.uk/news/science-environment-68787534
Researchers have discovered the cause of the brightest burst of light ever recorded.
But in doing so they have run up against two bigger mysteries, including one that casts doubt on where our heavy elements - like gold - come from.
Proving that every day we know more about less....
Researchers have discovered the cause of the brightest burst of light ever recorded.
But in doing so they have run up against two bigger mysteries, including one that casts doubt on where our heavy elements - like gold - come from.
Proving that every day we know more about less....
Astronomers discover Milky Way’s biggest stellar black hole – 33 times size of sun
BH3 spotted when scientists chanced upon star in Aquila constellation ‘wobbling’ under its gravitational force
https://www.theguardian.com/science...t-stellar-black-hole-bh3-33-times-size-of-sun
BH3 spotted when scientists chanced upon star in Aquila constellation ‘wobbling’ under its gravitational force
https://www.theguardian.com/science...t-stellar-black-hole-bh3-33-times-size-of-sun
CSIRO telescope detects unprecedented behaviour from nearby magnetar
Captured by cutting-edge radio telescope technology, a chance reactivation of a magnetar – the Universe’s most powerful magnets – has revealed an unexpectedly complex environment.
https://www.csiro.au/en/news/All/Ne...edented-behaviour-from-magnetar-XTE-J1810-197
Dr Marcus Lower, a postdoctoral fellow at Australia’s national science agency – CSIRO, led the latest research and said the results are unexpected and totally unprecedented.
"Unlike the radio signals we've seen from other magnetars, this one is emitting enormous amounts of rapidly changing circular polarisation. We had never seen anything like this before,” Dr Lower said.
Captured by cutting-edge radio telescope technology, a chance reactivation of a magnetar – the Universe’s most powerful magnets – has revealed an unexpectedly complex environment.
https://www.csiro.au/en/news/All/Ne...edented-behaviour-from-magnetar-XTE-J1810-197
Dr Marcus Lower, a postdoctoral fellow at Australia’s national science agency – CSIRO, led the latest research and said the results are unexpected and totally unprecedented.
"Unlike the radio signals we've seen from other magnetars, this one is emitting enormous amounts of rapidly changing circular polarisation. We had never seen anything like this before,” Dr Lower said.
Or the 21st century positron.
It's either see it now, or in 2095, chaps!
https://www.space.com/devil-comet-pons-brooks-reaches-perihelion
https://www.space.com/devil-comet-pons-brooks-reaches-perihelion
https://www.bbc.co.uk/news/science-environment-68881369
Voyager 1 is now sending back readable messages.
First launched in 1977, it is now some 15 billion Kms from earth and moving at 15 Kms/second.
It is powered by the heat given off by the decaying Plutonium being converted into electricity.
This is incredible and can arguably be classed as one of humanity greatest achievements.
Voyager 1 is now sending back readable messages.
First launched in 1977, it is now some 15 billion Kms from earth and moving at 15 Kms/second.
It is powered by the heat given off by the decaying Plutonium being converted into electricity.
This is incredible and can arguably be classed as one of humanity greatest achievements.
What the engineers have done to diagnose and fix the issue is amazing. They've had to go back to the original blueprints to diagnose and attempt to fix a hardware fault and remotely send commands to bypass bits of onboard memory that had stopped working.
NASA knows what knocked Voyager 1 offline, but it will take a while to fix | Ars Technica
It is indeed an extraordinary thing to have been able to diagnose and resolve the problem. Especially given the massive distance which takes a radio signal over 22 hours to reach the satellite, one way.
NASA has managed to move the processing to another part of the computer.
A computer designed way back in the mid 1970s.
I made a mistake in the distance. It is actually 20 billion Kms from earth and moving towards the centre of the galaxy.
Just a mind-blowing piece of technology.
Actually... no.
Which also is exactly why it still works, proper engineering, redundant, simple and robust, but not at the height of technological development (even at the time it was launched). Reliability was key for that thing.
Only another 40,000 years until it reaches Proxima Centauri. During that time, humans will have probably created propulsion technology to get them anywhere in the galaxy significantly faster.
500 million years until it leaves the Milky Way, although with the Andromeda collision only 4b years off at that point, I'm assuming gravity will pull it towards Andromeda and eventually back into Milkomeda. That's if it doesn't crash into something before.
It was from an age of incredible pieces of technology achievements, in the late 1960/1970s.
Including the NASA Apollo programme and something equally impressive, Concorde.
This age was described as the White Heat of technology when anything and everything seemed possible.
In not much more than a couple of decades, we had gone from the first manned supersonic flight, in a dive, to producing a successful supersonic jet liner with 100 passengers flying at twice the speed of sound.
Developed the first nuclear and then the first thermonuclear bomb as well as nuclear power.
And landed men on the moon and brought them back successfully as promised just a few years earlier.
Now in 2024, the only people who can fly at supersonic speeds, for a few minutes, are the odd fighter pilot strapped into an ejection seat and certainly not sipping champagne. And supersonic passenger travel is still some way off.
And we are no nearer to being able to land a person on the moon either.
So yes I would describe it as a fantastic piece of technology.
IMO the James Webb Space Telescope is one of the most impressive things humanity has ever done. Landing on the moon is nice, but we shouldn't go blind to other achievements over it. There's a reason they stopped going to the moon, after all.
The first time was an incredible achievement. The sixth one? Did we really learn anything from it? I'm sure they did some science, but there's plenty of lunar rocks to go around for science back on Earth, and we've learned a lot more since then from the amazing ISS.
I think part of the interest in getting back to the moon is the possibility of setting up a new telescope that can see better into infrared and electromagnetic than Webb.
Oh yeah, I definitely think there's human interest in going back to the moon, and then further out.
I agree on fantastic
My point was more that it's not "mind-blowing technology" as such, but it's straightforward stuff. Which makes it fantastic. I like simple but effective stuff
Agreed. And the International Space Station as well.
I will fully accept I might be biased.
But actually making a commercial supersonic aircraft, Concorde, able to transport 100 passengers at Mach 2.2 safely and reliability for over 2 decades has to be right up there. The crash was not the result of a faulty aircraft.
The reason I mention Concorde is that no one had done anything like it before or since.
I agree on fantastic
My point was more that it's not "mind-blowing technology" as such, but it's straightforward stuff. Which makes it fantastic. I like simple but effective stuff
Oh I certainly do agree with that. We have lost sight of that and everything is just getting overly complex and overly expensive. And very rarely on time either.
Concorde was also a great achievement, can't disagree there. But didn't it emit an incredible amount of climate gases? It was also very expensive (to fly on). I'm not sure it would be around even without the high profile crash.
Yeah but humans have been doing some other stuff instead:
James Webb telescope - a modern wonder of the world
SpaceX - reusable rockets
Photographing black holes
LIGO - observing gravity waves
Ingenuity Mars Copter (a helicopter on Mars!)
New Horizons (hi res photos of Pluto!)
And two random non space examples:
LLMs (arguably the first true human class AI)
ASML photolithography machines (just read this to appreciate what a phenomenal machine this is)
All of that is quite correct, although I am not sure about the CO2 emissions.
And the expense of flying was largely offset by the very fast flight times.
Yes of course.
Maybe I wasn't clear about my point.
I was more about those things that were achieved way back with the technology available at the time.
It was meant to emphasis the massive leaps that were made then.
Yes, it's often easier to leap from 0 to 10, than from 10 to 20. However, the new machinery at CERN, or the various space telescopes (there are more than two!) are examples of magnificent engineering and scientific achievements.
I'd say that the NVIDIA chips and the computer centers that made the current AI progress possible are also engineering marvels.
I agree on fantastic
My point was more that it's not "mind-blowing technology" as such, but it's straightforward stuff. Which makes it fantastic. I like simple but effective stuff
So german
Technology innovation is usually driven by necessity. The moon landing had a powerful geo-political driver behind it for instance. Concorde was driven by the idea that most passengers would want to travel so fast and it would be ultimately, down the line, very profitable for airlines. Neither of those drivers really exist now, so innovation has moved on to other things. Other amazing things. And in many respects, more useful things.
For example, having a chip in your phone that is more powerful than the room-sized super computer that took man to the moon, and having those phones in literally billions of homes, is pretty remarkable and in real terms much more impactful to the way the world works today.
I don’t think it would have been that difficult for a manufacturer to design and build a significantly better supersonic passenger jet than concord, in the last couple of decades; but there just wasn’t the market demand for it. No doubt supersonic passenger travel will eventually become the norm, but only once the technology and designs become as cost effective as the current longer-haul iterations.
Wow...this is bloody depressing. Not to downplay Destin, but how is a youtuber bringing this stuff to light?
12+ rockets to get 1 rocket up? They don't actually know the number? They are developing a space exploration system an no one knows or wants to talk about what is actually happening with Artemis?
What on earth are they doing? This is a fantastic video and I can't believe the program is so fundamentally resistant to questioning.
If the time stamp doesn't work, destin starts his criticism section of the talk around 20 mins in.
12+ rockets to get 1 rocket up? They don't actually know the number? They are developing a space exploration system an no one knows or wants to talk about what is actually happening with Artemis?
What on earth are they doing? This is a fantastic video and I can't believe the program is so fundamentally resistant to questioning.
If the time stamp doesn't work, destin starts his criticism section of the talk around 20 mins in.
When a big one will come....will see what happens to civilizations. Is actually one of the things that scares me the most
Looked at the sky, looked like nothing out of the ordinary. Took a photo and the sky was transformed into some rainbow effect? Is this how the northern lights always is? Only viewable through a lens? Abit of a let down whilst also kinda cool.