11:20 small correction there in fertilizer you are looking for potassium phosphor and nitrogen. Potassium is called Kalium in most languages. since NKP fertilizing. Perhaps you or someone else misheard Kalium for Carbon.
I used to take 5 to 10 minute exposures. Now I have to do 30 second exposures. Otherwise I just end up with a ton of satellite trails. I still toss about 1-3% of my data at the end of the night.
How far apart would you need to space two ground telescopes so that they can each fill in the data that got ruined by a satellite streak in the other with the help of parallax?
@@frasercain I don't mean interferometry and other highly time-sensitive types of data, but image and image-like stuff, where in general the sky looks just about the same from everywhere on the planet (discounting atmospheric conditions etc), stuff where with just some basic "at the same time" requirements, you could just cut out a piece of a picture and fill the hole with the same region of the sky from another picture.
You said that bringing one of these big-ass diamond stars to earth would make you rich, briefly, and then destroy the planet. Do you mean destroy the economy of the planet? Or in a more physical sense?
I don't think bringing a white dwarf-sized diamond to Earth will make you rich. Having a high supply of anything including diamonds without an equally high demand will drastically lower its value because diamonds will no longer be rare.
Hundreds to ~ a thousand times, to be accurate. And theory and observation say that two of the main contributors are magnetic reconnection and Alfven (plasma) waves.
12:44 "Betelgeuse has brightened unexpectedly ... like 51%". Not looking at the screen at the time, and so "Oh Wow!" I thought -- till hearing the rest of the sentence. 😀
Satellite trails, get used to them, we aren’t giving us the advantages of satellites. I recommend more space telescopes and some big ones on the dark side of the moon.
So you disagree that astronomers and satellite companies should work together to minimize the impact of satellite trails on astronomy while providing as much coverage as possible to humanity? Interesting, tell me more.
@@frasercain please don’t put words in my mouth and then judge me by them, it is unbecoming to you. I said what I said and that is my opinion. In the short term cooperation May help a bit, no harm in trying. In the long term there will be more and more satellites and that is the way it is going to be. The astronomers will need to put their equipment above the satellites. That is the way it will be. I am all for funding the astronomers and their expensive telescopes. But I’m also for providing internet services to third world countries and rural parts of the world. I’m for the GPS and all the new auto positioning that will become available. There was a time when people in horse back bitched about the new dangled cars, well cars won and few us us can do without them. The progress of technology marches on.
That must mean there are significant convection currents distributing chemicals from the sea floor throughout the water column, also an excellent condition for life. Super cool discovery! Expedite mission; yes please...
You're suggesting thousands of stars in a 4 light year space. What kind of gravitational effect would they have on each other? Would they be crashing into each other? When you talk about the need to send a probe to Enceladus, that adds to the list of other desired missions like revisiting Neptune, and others. These $500 million or $1Billion projects that take 10 years to fund, design, and launch, plus the travel time, the amount of science return over the years is soooo slow and expensive. When you consider the recent revolution in cost cutting and launch access to LEO and the miniaturization of capabilities we've seen with cube sats, do you think that a revolution in planetary missions might also be coming? We have solved the physics and engineering on so many different types of probes, are we closer to a mass production that would allow a multiplication in planetary missions? Granted, I do understand the funds are not just to build and launch but also to operate the mission. But maybe that could be streamlined as well. Space X... Sol Sys X! Hi L.... :)
The influence of electromagnetic fields and electric currents in the formation and functioning of everything from stars, to planetary systems, galaxies, galaxy clusters, galaxy filaments, etc., has been systematically overlooked by conventional astrophysics.
re - 18:46 Dude... Did you slide a frame or two of some flat-earth models into the footage, just so that the flerfer conspiracy nuts would have something to go crazy over? If so, I salute you.
@@frasercain How about this though... plants build new cells and grow because they uptake those elements from their roots, however that is only a small portion of whats happening. Their main mass building process is actually sequestration of Carbon by the absorption of CO² and photons through their leaves. So technically Carbon is a vital "fertilizer".
everything has a trade off.... when it comes to satellites and their interference with telescopes, it has its own trade offs as well..... do we want clearer skies, that allow us to gather more information faster..... or do we want internet satellites that allow us to share more information faster ............................... one isnt better or worse inherently, they are simply better or worse for specific goals.
We don't need to burrow through the ice in Enceladus and other icy moons. A simple sample-return mission would do. Just fly a probe through a plume, gather one gram or even just one drop of water, and send it back on a fast, tiny rocket. Once in Earth labs we can probably then confirm or rule out any life that might be related to life on Earth.
Deep Sky Stacker and I guess other stacking programs already eliminate satellite trails, right? But they (Starlink satellites) are really annoying, indeed, when doing astrophotography.
I think there is a small error Nitrogen, Phosphorous and Potassium (NPK) are the main fertilisers (not carbon, but it's still important for life obviously) Around 11:20. Love the videos
Math is awesome. The ISS picture is why I love science. Lol. The fact that someone can take the time to do some "quick" calculations, we can see some amazing shots. Thank you.
Pedantic point, but, you wouldn't get rich having a white dwarf worth of diamond. The value of diamonds comes from the monopoly on their supply (largely held by the DeBeers company). If you showed up with a huge trove of diamonds you'd just crash the market (likely losing the cost of your investment to bring them to market in the first place) and bankrupt the diamond companies. Probably the only way to really get rich off having a white dwarf worth of diamond is just to obtain a legal claim to it cheaply and sell it off to the diamond companies at a profit.
Seeing that white dwarf stars can crystallize over time, makes me believe even stronger that the planet Krypton, in Superman the Movie, was a crystalized white dwarf. What do you think?
Value of diamond is determined by supply and demand. Supply is artificially regulated by monopolist De Beers. When someone saturates the market with a white dwarf sized diamond, the value is reduced to almost nothing.
Fraser you are my number one choice for this hugely interesting topic Love your work Even better now that I have found your visuals on yt. Love the podcasts though. You don't even need the visuals. But finding the visuals. Love it 🎉
If you could bring a white dwarf to Earth think about all the global warming you could do with all that carbon...I mean maybe some hydrogen settles back on the surface. Could a cool enough white dwarf be covered in hydrocarbons? There's oil in them stars!
Amazing content. I have a question: Are there common star mergers observed? Not black holes mergers nor neutron star mergers, stars like our sun colliding and merging. How does is looks like if it exists? Thanks.
@@ashb8036 Theia's mass was added to the Earth's and the formation of the Moon during the merger. This is why astrophysicists believe the Earth's core is larger than expected for a planet of its size.
Astronomers do very long exposures, like 5+ minutes at a time. So you'll have to throw the entire observation away since there's a satellite trail going through your galaxy.
@9:43-ish How is stopping data collection for a satellite overflight better than just disregarding the images compromised by a satellite overflight? • ( _Still trying trying to figure out to inject iron into a sun for my evil genius extortion plan_ ) • 💉🌻
Is there a chance that a measurement is impacted by a satellite that's _not_ illuminated? I mean, I'm guessing the dimming would be miniscule but maybe it's still important for some measurements. And what about spectroscopy. Those weird elements filtering your light can't be good, can it? I'm asking because an illuminated satellite is at least obvious but one that's not in direct sunlight or that's at an angle where it would only reflect a tiny bit of sunlight into the telescope would be a lot more subtle.
I suppose that if two white dwarves merged the diamond would melt before some could be thrown off as collision debris. Pity, it would have made pretty asteroids.
Time to invest in increasing Hubble's orbit... It is such an important observatory + all that went into building that the investment in a robotic booster mission seems relevant!.
I don't understand the mechanics of these plumes. If they're coming from the ocean underneath, and the ice isn't in direct contact with thermal vents, how is that pressure transferred to the surface??
Several of the fastest days on record have been recorded in recent times with it seems a growth in these records being set. Ig one does a search and then a deeper search e.g., google scholar, then evidence is there. Am I seeing twisted Birkeland currents in the Tarantula?
