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  #1561  
Old 06-06-19, 08:55 AM
lotr10 lotr10 is offline
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Well if they have moons AND oceans they'll have tides:

https://www.iflscience.com/space/exo...he-first-time/


Two independent teams of astronomers have found evidence that a circumplanetary disk surrounds two nearby exoplanets. This is believed to be a fundamental stage in the evolution of gas giant planets that could lead to the formation of moons.

Both studies used the incredible capabilities of the Very Large Telescope, although they employed different instruments. The first paper, published in The Astrophysical Journal Letters, used the SINFONI instrument. The second paper, published in Nature Astronomy, employed the MUSE instrument.
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  #1562  
Old 06-07-19, 07:50 AM
lotr10 lotr10 is offline
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So instead of calling it Blue Thunder we should call it Red Thunder?

https://phys.org/news/2019-06-nasa-m...ter-phase.html


NASA's Mars Helicopter flight demonstration project has passed a number of key tests with flying colors. In 2021, the small, autonomous helicopter will be the first vehicle in history to attempt to establish the viability of heavier-than-air vehicles flying on another planet.

"Nobody's built a Mars Helicopter before, so we are continuously entering new territory," said MiMi Aung, project manager for the Mars Helicopter at NASA's Jet Propulsion Laboratory in Pasadena, California. "Our flight model—the actual vehicle that will travel to Mars—has recently passed several important tests."

Back in January 2019 the team operated the flight model in a simulated Martian environment. Then the helicopter was moved to Lockheed Martin Space in Denver for compatibility testing with the Mars Helicopter Delivery System, which will hold the 4-pound (1.8-kilogram) spacecraft against the belly of the Mars 2020 rover during launch and interplanetary cruise before deploying it onto the surface of Mars after landing.



Okay, at 4 pounds we should call it "little" Blue Thunder.
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  #1563  
Old 06-07-19, 09:01 PM
lotr10 lotr10 is offline
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Man we've got to make this work:

https://www.wired.com/story/a-mythic...s-a-real-test/


Since the birth of the space age, the dream of catching a ride to another solar system has been hobbled by the “tyranny of the rocket equation,” which sets hard limits on the speed and size of the spacecraft we sling into the cosmos. Even with today’s most powerful rocket engines, scientists estimate it would take 50,000 years to reach our closest interstellar neighbor, Alpha Centauri. If humans ever hope to see an alien sunrise, transit times will have to drop significantly.

Of the advanced propulsion concepts that could theoretically pull that off, few have generated as much excitement—and controversy—as the EmDrive. First described nearly two decades ago, the EmDrive works by converting electricity into microwaves and channeling this electromagnetic radiation through a conical chamber. In theory, the microwaves can exert force against the walls of the chamber to produce enough thrust to propel a spacecraft once it’s in space. At this point, however, the EmDrive exists only as a laboratory prototype, and it’s still unclear whether it’s able to produce thrust at all. If it does, the forces it generates aren’t strong enough to be registered by the naked eye, much less propel a spacecraft.

Over the past few years, however, a handful of research teams, including one from NASA, claim to have successfully produced thrust with an EmDrive. If true, it would amount to one of the biggest breakthroughs in the history of space exploration. The problem is that the thrust observed in these experiments is so small that it’s hard to tell if it’s real.
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  #1564  
Old 06-08-19, 03:55 PM
lotr10 lotr10 is offline
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They claim the fate of the Universe depends on this:

https://www.space.com/giant-higgs-fate-of-universe.html


We all know and love the Higgs boson — which to physicists' chagrin has been mistakenly tagged in the media as the "God particle" — a subatomic particle first spotted in the Large Hadron Collider (LHC) back in 2012. That particle is a piece of a field that permeates all of space-time; it interacts with many particles, like electrons and quarks, providing those particles with mass, which is pretty cool.

But the Higgs that we spotted was surprisingly lightweight. According to our best estimates, it should have been a lot heavier. This opens up an interesting question: Sure, we spotted a Higgs boson, but was that the only Higgs boson? Are there more floating around out there doing their own things?

Though we don't have any evidence yet of a heavier Higgs, a team of researchers based at the LHC, the world's largest atom smasher, is digging into that question as we speak. And there's talk that as protons are smashed together inside the ring-shaped collider, hefty Higgs and even Higgs particles made up of various types of Higgs could come out of hiding.

If the heavy Higgs does indeed exist, then we need to reconfigure our understanding of the Standard Model of particle physics with the newfound realization that there's much more to the Higgs than meets the eye. And within those complex interactions, there might be a clue to everything from the mass of the ghostly neutrino particle to the ultimate fate of the universe.



I suspect we all don't LOVE the HB particle but it sure is damn interesting!
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  #1565  
Old 06-09-19, 12:23 PM
lotr10 lotr10 is offline
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So is any one on Yappi booking a trip?

https://phys.org/news/2019-06-nasa-i...-tourists.html


"NASA is opening the International Space Station to commercial opportunities and marketing these opportunities as we've never done before," NASA chief financial officer Jeff DeWit said in an announcement made at the Nasdaq stock exchange in New York.

These travelers would be ferried to the orbiter exclusively by the two US companies currently developing transport vehicles for NASA: SpaceX, with its Crew Dragon capsule, and Boeing, which is building one called Starliner.

These companies would choose the clients—who will not have to be US citizens—and bill for the trip to the ISS, which will be the most expensive part of the adventure: around $58 million for a roundtrip ticket.

The tourists will pay NASA for their use of the station, for food, water and use of the life support system.

That will run about $35,000 per night per astronaut, said DeWit.

That does not include internet, which will cost $50 per gigabyte.



Wow, $50 per gigabyte seems a bit expensive to me.
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  #1566  
Old 06-09-19, 12:54 PM
lotr10 lotr10 is offline
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Good grief this takes the precautionary principal to ridiculous lengths!


https://www.express.co.uk/news/scien...ail-space-news


Man-made climate change is an immediate concern, meaning a global warming apocalypse appears increasingly likely. However the planet’s long-term prognosis is even more dire, because the sun will one day run out of fuel and expand, most likely destroying the Earth in five billion years. Moving the Earth to a wider orbit to escape this fiery oblivion may seem like a far-fetched solution, but an engineer has now outlined several theories for escaping this fate.


First off a "global warming apocalypse" is NOT likely. It's this type of empty headed alarmism that gives the whole humans cause climate change concept a bad name among skeptics. But then again considering that this article actually talks about a solution to a problem that won't happen for 5 BILLION YEARS maybe the authors are just the nervous type.

I get this was just a thought exercise but it would have made more sense to have used Science Fiction writers rather then engineers to brainstorm this. I suspect that if we're still around in a couple of billion years we'll be technically advanced enough to turn suns on and off and propel the Earth anywhere in the Universe we want to go.
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  #1567  
Old 06-10-19, 04:36 PM
lotr10 lotr10 is offline
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This seems like something we should be worrying about more then when the Sun expands in 5 billion years and eats the earth:

https://www.space.com/asteroid-could...mber-2019.html


This fall, Earth has about a 1-in-7,000 chance of getting an uninvited extraterrestrial visitor: asteroid 2006 QV89.

The space rock is expected to whiz by our planet on Sept. 9, 2019, according to European Space Agency's (ESA) list of space objects that could collide with Earth. That list was updated online June 6. Out of 10 objects on the list, 2006 QV89 ranked fourth.

Compared to the 6-mile-long (10 kilometers) asteroid that killed the nonavian dinosaurs about 66 million years ago, 2006 QV89 is pretty dinky, measuring just 130 feet (40 meters) in diameter, or about the length of two bowling alleys placed end to end.



Maybe it's just me but I don't find a 1 in 7,000 chance of this thing hitting us all that comforting. After all those are about the odds of my Bills or Bengals winning next years Super Bowl and I'm looking forward to the 2019 NFL season.
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  #1568  
Old 06-12-19, 10:34 PM
Yappi Yappi is offline
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The Ocean on Jupiter's Moon Europa Has Table Salt, Just Like Earth's Seas

Quote:
The huge ocean sloshing beneath the ice shell of the Jupiter moon Europa may be intriguingly similar to the seas of Earth, a new study suggests.

Scientists have generally thought that sulfate salts dominate Europa's subsurface ocean, which harbors about twice as much water as all of Earth's seas put together. But the Hubble Space Telescope has detected the likely presence of sodium chloride (NaCl) on Europa's frigid surface, the study reports.

The NaCl — the same stuff that makes up plain old table salt — is probably coming from the ocean, study team members said. And that's pretty exciting, given that the saltiness of Earth's oceans comes primarily from NaCl.
Read more:
https://www.space.com/jupiter-moon-e...able-salt.html
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  #1569  
Old 06-13-19, 07:37 AM
lotr10 lotr10 is offline
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Quote:
Originally Posted by Yappi View Post
The Ocean on Jupiter's Moon Europa Has Table Salt, Just Like Earth's Seas



Read more:
https://www.space.com/jupiter-moon-e...able-salt.html
Great news! I've always thought Europa was a place where we'd find extraterrestrial life.

And imagine the commercial possibilities of selling sea salt from Jupiter.
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  #1570  
Old 06-13-19, 07:41 AM
lotr10 lotr10 is offline
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This is why you have to be careful holding on to metals as an investment:

https://www.express.co.uk/news/scien...ion-space-news


The value of all the nickel and iron that NASA believes makes up 16-Psyche’s oddly-shaped space rock in the asteroid belt’s outer reaches is estimated at $10,000 quadrillion. This is a massive sum, but NASA’s Psyche mission, which has now received approval to enter the final development stages before manufacturing begins for its 2022 launch, is actually after a much bigger prize – revealing how Earth's origins. NASA researchers believe asteroid Psyche is key to understanding how planetary bodies are formed.
Related articles

This is because the space scientists theorise Psyche is really the core of a planet which broke apart following a succession of apocalyptic collisions.



I think $10,000 quadrillion is $10,000,000,000,000,000,000!
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  #1571  
Old 06-14-19, 07:39 AM
lotr10 lotr10 is offline
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Some real cool gizmo's that are on NASA's drawing boards:

https://www.space.com/nasa-moon-aste...niac-2019.html


Two far-off NASA concepts could quickly survey lunar craters for astronauts and help identify mining resources on nearby asteroids.

The projects come courtesy of the NASA Innovative Advanced Concepts program, which pursues theoretical ideas that could take many years to come to fruition. Each project is at the most advanced stage of development NIAC has offered to date, Phase III, and will receive up to $2 million to outline the mission concept, according to a NASA statement released on Tuesday (June 11).
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  #1572  
Old 06-14-19, 09:02 AM
Zunardo Zunardo is offline
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Quote:
Originally Posted by lotr10 View Post
This is why you have to be careful holding on to metals as an investment:

https://www.express.co.uk/news/scien...ion-space-news


[B][I]The value of all the nickel and iron that NASA believes makes up 16-Psyche’s oddly-shaped space rock in the asteroid belt’s outer reaches is estimated at $10,000 quadrillion ......
De Beers will go out of business if our astronauts ever reach that big diamond at the core of Jupiter.
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  #1573  
Old 06-17-19, 09:08 AM
lotr10 lotr10 is offline
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Quote:
Originally Posted by Zunardo View Post
De Beers will go out of business if our astronauts ever reach that big diamond at the core of Jupiter.
Maybe, maybe not. The De Beers have a long track record of doing what's necessary to keep diamonds scarce and the prices high. But I suspect that even they would have a hard time hiding Jupiter!

Your post though is spot on with respect to the economic shocks that expanding into the solar system will lead to. The first will be as we spread throughout the Solar System and exploit the available resources and the 2nd will be when we expand to the stars.
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  #1574  
Old 06-17-19, 09:12 AM
lotr10 lotr10 is offline
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Where there are "Jupiter's" there will be other smaller more livable planets:

https://phys.org/news/2019-06-jupite...planetary.html


As planets form in the swirling gas and dust around young stars, there seems to be a sweet spot where most of the large, Jupiter-like gas giants congregate, centered around the orbit where Jupiter sits today in our own solar system.

The location of this sweet spot is between 3 and 10 times the distance Earth sits from our sun (3-10 astronomical units, or AU). Jupiter is 5.2 AU from our sun.

That's just one of the conclusions of an unprecedented analysis of 300 stars captured by the Gemini Planet Imager, or GPI, a sensitive infrared detector mounted on the 8-meter Gemini South telescope in Chile.



Make sure you check out the cool time lapse video showing the evolution of the exoplanet survey map over the last 5 years. The "neighborhood" is getting crowd!
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  #1575  
Old 06-18-19, 07:29 AM
lotr10 lotr10 is offline
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Now this is interesting:

https://www.space.com/meteor-smoke-t...s-on-mars.html


Cotton candy clouds in the middle atmosphere of Mars may owe their life to dying meteors.

New research suggests that the atmospheric destruction of meteors creates tiny particles of dust that can seed the thin clouds. The discovery may help solve the mystery of how the wispy clouds grow in the middle atmosphere, improving scientists' understanding of the Martian climate both of today and in the past.

"Clouds don't just form on their own," Victoria Hartwick, a graduate student at the University of Colorado Boulder and lead author on the new paper, said in a statement. "They need something that they can condense onto."
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