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James
 Rep: 664 

Re: The Space thread

James wrote:

I don't like how the US is taking a backseat while countries like China and India are moving forward. Fuck, even Kenya wants in on the action!

NASA needs to be overhauled somehow and get out of this 4-8 year cycle where it depends on who the president is and how partisan congress is and this factors in to certain programs being canceled and/or a complete shift in tone. Obama killed the shuttle and pretended we would go to Mars. The shuttle has no replacement and we hitchhike for a ride with the Russians. Now Trump wants Mars and the Moon to become a focus yet we just killed our Moon rover while these countries pick up the slack.

Trump did give NASA the best budget in years but it will be awhile to see how much it helped.

The US should not let other countries get ahead of us in moon exploration.

James
 Rep: 664 

Re: The Space thread

James wrote:

Weird Space Rock Provides More Evidence for Mysterious 'Planet Nine'


aHR0cDovL3d3dy5zcGFjZS5jb20vaW1hZ2VzL2kvMDAwLzA3Ni80OTAvb3JpZ2luYWwvcGxhbmV0LW5pbmUtb3JiaXRzLmpwZw==




The solar system just got a bit stranger. As astronomers continue their ongoing quest to find the elusive Planet Nine, a team found a space rock that lends credence to the idea that a huge super-Earth planet really exists in the outer reaches of our solar system.

The newfound asteroid, called 2015 BP519, adds to a growing body of evidence about little worlds in the solar system being perturbed by something big. Astronomers detailed its discovery and description in a new paper, adding that the bizarre angle of its orbit gives more weight to the idea that a big planet is out there — somewhere — tugging on the asteroid's path around the sun.

"We also consider the long term orbital stability and evolutionary behavior within the context of the Planet Nine hypothesis, and find that 2015 BP519 adds to the circumstantial evidence for the existence of this proposed new member of the solar system," read the abstract of the paper, which is available now on preprint website Arxiv and has been submitted to The Astronomical Journal. [How Astronomers Could Actually See 'Planet Nine']

Following up on the discovery, Quanta Magazine recently published an article surveying several astrophysicists who specialize in studying small worlds, including the discoverers of 2015 BP519. While not everybody agreed that Planet Nine was responsible for the strange orbit, the overwhelming majority agreed the new discovery gives more credence to the idea. "The second you put Planet Nine in the simulations, not only can you form objects like this object, but you absolutely do," lead author Juliette Becker, a graduate student at the University of Michigan, told Quanta. (You can look at the object's orbit online here.)

It's not the first time Planet Nine was blamed for pushing an object around. Back in 2014, before Planet Nine was officially hypothesized, astronomers Scott Sheppard and Chadwick Trujillo noticed orbital irregularities in several small bodies beyond Neptune's orbit. These included dwarf planet Sedna, a newfound object called 2012 VP113, and several other trans-Neptunian objects (TNOs).

Then, in January 2016, astronomers Konstantin Batygin and Mike Brown saw more evidence of TNOs with perturbed orbits. They were the ones who first gave "Planet Nine" a name, size and distance. They suggested that the mysterious planet could be 10 times more massive than Earth, located 600 astronomical units (AU) from the sun. (One AU is the average distance between the Earth and the sun, which is 93 million miles or 150 million kilometers.)


A flood of studies followed about TNOs and how Planet Nine might have affected their orbits; the following summary is just a sampling. Not all teams were enthusiastic, with one group from the Outer Solar System Origins Survey (OSSOS) cautioning that many of these surveys could be just observational bias.

But astronomers persisted, with Sheppard and Trujillo discovering at least two new TNOs possibly affected by Planet Nine. Another study showed Planet Nine perhaps influenced the tilt of planets in our solar system. And in 2017, astronomers from the University of Madrid in Spain found peculiarities in the orbits of 22 "extreme" TNOs that orbit the sun that could also be explained by a large, distant body exerting gravitational influence. (These TNOs never get closer to the sun than Neptune — which is 30 AU away, orbiting the sun in a rough circle — and have an average distance of at least 150 AU.)

By October 2017, Batygin said, there were at least five different lines of evidence that suggest the existence of the planet. "If you were to remove this explanation and imagine Planet Nine does not exist, then you generate more problems than you solve. All of a sudden, you have five different puzzles, and you must come up with five different theories to explain them," he said in a statement.


https://www.space.com/40642-space-rock- … ement.html

James
 Rep: 664 

Re: The Space thread

James wrote:

Its amazing how much we've learned over the past few decades. When we were kids, there were only nine planets(including Pluto). Saturn had like 12 moons and I think Jupiter had 10. Uranus and Neptune 4 or 5. There were theories of a tenth planet.

NOW....

Pluto isn't even a planet. It's a 'dwarf planet'....and there's so many of those we haven't even discovered them all yet. Even with all these dwarf planets, they're on the verge of discovering that mythical planet. Saturn has 62 moons(and counting), Jupiter has 69 moons(and counting), Uranus 27 moons, and Neptune 14 moons.

Imagine what we'll discover over the next few decades.

As far as 'planet nine' goes, its obvious why its avoided detection for so long. Its simply too far out in its orbit currently. With any luck, its getting closer. We got lucky the same way when it came to Pluto...although this one is waaay out there.

mitchejw
 Rep: 130 

Re: The Space thread

mitchejw wrote:
kermit the Trump wrote:

Weird Space Rock Provides More Evidence for Mysterious 'Planet Nine'


https://img.purch.com/h/1400/aHR0cDovL3 … RzLmpwZw==




The solar system just got a bit stranger. As astronomers continue their ongoing quest to find the elusive Planet Nine, a team found a space rock that lends credence to the idea that a huge super-Earth planet really exists in the outer reaches of our solar system.

The newfound asteroid, called 2015 BP519, adds to a growing body of evidence about little worlds in the solar system being perturbed by something big. Astronomers detailed its discovery and description in a new paper, adding that the bizarre angle of its orbit gives more weight to the idea that a big planet is out there — somewhere — tugging on the asteroid's path around the sun.

"We also consider the long term orbital stability and evolutionary behavior within the context of the Planet Nine hypothesis, and find that 2015 BP519 adds to the circumstantial evidence for the existence of this proposed new member of the solar system," read the abstract of the paper, which is available now on preprint website Arxiv and has been submitted to The Astronomical Journal. [How Astronomers Could Actually See 'Planet Nine']

Following up on the discovery, Quanta Magazine recently published an article surveying several astrophysicists who specialize in studying small worlds, including the discoverers of 2015 BP519. While not everybody agreed that Planet Nine was responsible for the strange orbit, the overwhelming majority agreed the new discovery gives more credence to the idea. "The second you put Planet Nine in the simulations, not only can you form objects like this object, but you absolutely do," lead author Juliette Becker, a graduate student at the University of Michigan, told Quanta. (You can look at the object's orbit online here.)

It's not the first time Planet Nine was blamed for pushing an object around. Back in 2014, before Planet Nine was officially hypothesized, astronomers Scott Sheppard and Chadwick Trujillo noticed orbital irregularities in several small bodies beyond Neptune's orbit. These included dwarf planet Sedna, a newfound object called 2012 VP113, and several other trans-Neptunian objects (TNOs).

Then, in January 2016, astronomers Konstantin Batygin and Mike Brown saw more evidence of TNOs with perturbed orbits. They were the ones who first gave "Planet Nine" a name, size and distance. They suggested that the mysterious planet could be 10 times more massive than Earth, located 600 astronomical units (AU) from the sun. (One AU is the average distance between the Earth and the sun, which is 93 million miles or 150 million kilometers.)


A flood of studies followed about TNOs and how Planet Nine might have affected their orbits; the following summary is just a sampling. Not all teams were enthusiastic, with one group from the Outer Solar System Origins Survey (OSSOS) cautioning that many of these surveys could be just observational bias.

But astronomers persisted, with Sheppard and Trujillo discovering at least two new TNOs possibly affected by Planet Nine. Another study showed Planet Nine perhaps influenced the tilt of planets in our solar system. And in 2017, astronomers from the University of Madrid in Spain found peculiarities in the orbits of 22 "extreme" TNOs that orbit the sun that could also be explained by a large, distant body exerting gravitational influence. (These TNOs never get closer to the sun than Neptune — which is 30 AU away, orbiting the sun in a rough circle — and have an average distance of at least 150 AU.)

By October 2017, Batygin said, there were at least five different lines of evidence that suggest the existence of the planet. "If you were to remove this explanation and imagine Planet Nine does not exist, then you generate more problems than you solve. All of a sudden, you have five different puzzles, and you must come up with five different theories to explain them," he said in a statement.


https://www.space.com/40642-space-rock- … ement.html

This diagram looks very much like an electron.

Are we just living in an electron?

monkeychow
 Rep: 661 

Re: The Space thread

monkeychow wrote:
mitchejw wrote:

This diagram looks very much like an electron.

Are we just living in an electron?

I've noticed that before too.

Like when you zoom a long way in everything starts to look really similar to when you zoom a long way out.

Really makes you think.

mitchejw
 Rep: 130 

Re: The Space thread

mitchejw wrote:
monkeychow wrote:
mitchejw wrote:

This diagram looks very much like an electron.

Are we just living in an electron?

I've noticed that before too.

Like when you zoom a long way in everything starts to look really similar to when you zoom a long way out.

Really makes you think.

You can really freak yourself out about this stuff....

Compared to the solar system, human beings are tiny specs. Compared to electrons, human beings are enormous. That sequence could go on infinitely. The solar system could just be an electron in a human's thumb. Or vice versa.

A Private Eye
 Rep: 77 

Re: The Space thread

I’ve often thought the same thing. The similarity between an atom and the solar system I’ve always found interesting.

Randall Flagg
 Rep: 139 

Re: The Space thread

A Private Eye wrote:

I’ve often thought the same thing. The similarity between an atom and the solar system I’ve always found interesting.


Except it’s not. We were taught that model in school to help us understand the setup of an atom, but you can’t observe an electron. It’s not orbiting the nucleus of an atom like a planet does its star.

Heisenberg’s uncertainty principle is why we can never snap an image of an electron. The best visual image of an electron would be a cloud surrounding a nucleus representing where that electron could be at any moment.

Plus planets form a disc through gravity while the proton and electron are held in place by the electromagnetic force.

mitchejw
 Rep: 130 

Re: The Space thread

mitchejw wrote:
Randall Flagg wrote:
A Private Eye wrote:

I’ve often thought the same thing. The similarity between an atom and the solar system I’ve always found interesting.


Except it’s not. We were taught that model in school to help us understand the setup of an atom, but you can’t observe an electron. It’s not orbiting the nucleus of an atom like a planet does its star.

Heisenberg’s uncertainty principle is why we can never snap an image of an electron. The best visual image of an electron would be a cloud surrounding a nucleus representing where that electron could be at any moment.

Plus planets form a disc through gravity while the proton and electron are held in place by the electromagnetic force.

It looks like a cloud because the electrons are moving so fast around it?

Randall Flagg
 Rep: 139 

Re: The Space thread

mitchejw wrote:
Randall Flagg wrote:
A Private Eye wrote:

I’ve often thought the same thing. The similarity between an atom and the solar system I’ve always found interesting.


Except it’s not. We were taught that model in school to help us understand the setup of an atom, but you can’t observe an electron. It’s not orbiting the nucleus of an atom like a planet does its star.

Heisenberg’s uncertainty principle is why we can never snap an image of an electron. The best visual image of an electron would be a cloud surrounding a nucleus representing where that electron could be at any moment.

Plus planets form a disc through gravity while the proton and electron are held in place by the electromagnetic force.

It looks like a cloud because the electrons are moving so fast around it?

No, because of Heisenberg’s uncertainty principle. The electron doesn’t exist in three dimensional space. It manifests at different points randomly in its orbit. The cloud represents the location of where it could be.

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