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OT: Fascinating space science

The Spin Meister

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Nov 27, 2012
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An altered state
So Japan landed a probe on an asteroid and will bring back samples. It also dropped a copper ball to create a crater so they can sample subsurface materials.

Hayabusa2 successfully touched down on a small level area on the boulder-strewn asteroid in February, when it also collected some surface dust and small debris. The craft is scheduled to leave the asteroid at the end of 2019 and bring the surface fragments and underground samples back to Earth in late 2020.

The asteroid, named Ryugu after an undersea palace in a Japanese folktale, is about 300 million kilometers (180 million miles) from Earth.
 
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So Japan landed a probe on an asteroid and will bring back samples. It also dropped a cooper ball to create a crater so they can sample subsurface materials.

Hayabusa2 successfully touched down on a small level area on the boulder-strewn asteroid in February, when it also collected some surface dust and small debris. The craft is scheduled to leave the asteroid at the end of 2019 and bring the surface fragments and underground samples back to Earth in late 2020.

The asteroid, named Ryugu after an undersea palace in a Japanese folktale, is about 300 million kilometers (180 million miles) from Earth.
Yeah, and China is sending robots to the moon.

https://www.businessinsider.com/china-moon-mission-lunar-landing-far-side-change4-2018-12
 
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So Japan landed a probe on an asteroid and will bring back samples. It also dropped a cooper ball to create a crater so they can sample subsurface materials.

Hayabusa2 successfully touched down on a small level area on the boulder-strewn asteroid in February, when it also collected some surface dust and small debris. The craft is scheduled to leave the asteroid at the end of 2019 and bring the surface fragments and underground samples back to Earth in late 2020.

The asteroid, named Ryugu after an undersea palace in a Japanese folktale, is about 300 million kilometers (180 million miles) from Earth.
 
I hope they clean up after themselves. Humans ruin stuff.

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So Japan landed a probe on an asteroid and will bring back samples. It also dropped a copper ball to create a crater so they can sample subsurface materials.

Hayabusa2 successfully touched down on a small level area on the boulder-strewn asteroid in February, when it also collected some surface dust and small debris. The craft is scheduled to leave the asteroid at the end of 2019 and bring the surface fragments and underground samples back to Earth in late 2020.

The asteroid, named Ryugu after an undersea palace in a Japanese folktale, is about 300 million kilometers (180 million miles) from Earth.

More robots taking jobs humans used to do.

LdN
 
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Israel hopes to land on the moon next week.
Built by SpaceIL, it is the first privately financed venture to send a spacecraft into orbit so far from Earth.
(As soon as the spacecraft lands, the UN will claim the moon is occupied Arab territory, based on the crescent shape when often viewed from Earth.)

https://www.nytimes.com/2019/04/04/science/beresheet-israel-moon-orbit.html
 
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What Japan has accomplished, so far, is way more difficult than landing a robot on the moon. Now establishing a base on the moon, or some functional system such as robotic manufacturing or mining operations on the moon will be much more impactful.


Mining operations are coming. Helium III
 
All of this activity really highlights the accomplishment of the Apollo project. Fifty years ago. Unbelievable. I just got back from visiting the Kennedy Space Center. Seeing and being near a Saturn V rocket will move you. 7.5 million pounds of thrust.......power equal to the peak load electricity demand in the UK of 60 gigawatts. Amazing what can be done when you create a sense of urgency and eliminate fear of failure at all levels
 
So Japan landed a probe on an asteroid and will bring back samples. It also dropped a copper ball to create a crater so they can sample subsurface materials.

Hayabusa2 successfully touched down on a small level area on the boulder-strewn asteroid in February, when it also collected some surface dust and small debris. The craft is scheduled to leave the asteroid at the end of 2019 and bring the surface fragments and underground samples back to Earth in late 2020.

The asteroid, named Ryugu after an undersea palace in a Japanese folktale, is about 300 million kilometers (180 million miles) from Earth.
NASA has a similar mission, OSIRIS-REX.

https://www.asteroidmission.org/
 
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About a year to travel 180 million miles back to earth. That is slightly under 500,000 miles per day. Amazing. Shows how fast you can travel with light traffic!
Parker Solar Probe, which launched from KSC in August is currently making it's second pass (25 total passed) of the sun to collect data on the solar wind and corona, travels at 430K MPH during the closest approaches (perihelion) to the sun. The probe doesnt maintain the speed, but to give it perspective, it would travel 10.4 million miles in a day at that rate.
 
All of this activity really highlights the accomplishment of the Apollo project. Fifty years ago. Unbelievable. I just got back from visiting the Kennedy Space Center. Seeing and being near a Saturn V rocket will move you. 7.5 million pounds of thrust.......power equal to the peak load electricity demand in the UK of 60 gigawatts. Amazing what can be done when you create a sense of urgency and eliminate fear of failure at all levels
What has always amazed me is the escape velocity of the Rocket needed to journey into space.....25,000 mph. (36,000 fps).

My 243 Remington rifle propels the bullet @ 3,600 fps toward the target.

So the velocity of the space craft is 10 times faster than that of my 243 bullet....just amazing. o_O
 
Here’s an interesting article about mining the moon for various valuable materials.

https://www.google.com/amp/s/thehill.com/opinion/international/428004-european-space-agency-has-sights-set-on-mining-the-moon?amp

For the life of me, I cannot see the positives of establishing a colony on the moon. If mining or other such become ubiquitous then it will be because of robots and they will never be displaced by humans.

Considering the earth and the moon have pretty much the same composition, unless they're going to use it for space travel, what would be the benefit?
 
Considering the earth and the moon have pretty much the same composition, unless they're going to use it for space travel, what would be the benefit?
I read earlier an article which framed China’s mining plans as being a huge strategic advantage. The article I found and posted doesn’t go far in that direction.

It may be that I misremember what I originally read, but I recall it being a troubling read. We’ll muddle it all out someday.
 
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Considering the earth and the moon have pretty much the same composition, unless they're going to use it for space travel, what would be the benefit?
I read earlier an article which framed China’s mining plans as being a huge strategic advantage. The article I found and posted doesn’t go far in that direction.

It may be that I misremember what I originally read, but I recall it being a troubling read. We’ll muddle it all out someday.

Maybe I can send my in-laws to the moon
 
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