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  #1021  
Old 05-14-18, 06:56 AM
lotr10 lotr10 is offline
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Scientists have finally discovered the purpose of Jupiter in the Solar System:

https://www.sciencealert.com/jupiter...mation-junocam





It's the solar system's lava lamp!
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  #1022  
Old 05-15-18, 03:52 PM
lotr10 lotr10 is offline
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If this happens this year it's flat out amazing!

https://www.sciencealert.com/accordi...arth-this-year

SpaceX successfully launched Bangladesh's first-ever geostationary communications satellite, called Bangabandhu-1, into space on Friday.

But the real star of the mission was a newly designed rocket called Falcon 9 Block 5. Elon Musk, the founder of SpaceX, said the launcher is built to be the most powerful, reusable, and affordable version of his company's workhorse orbital rocket.

What's more, Musk said Falcon 9 Block 5 will usher in a new era of spaceflight records.

"I believe Falcon 9 was the most-launched rocket worldwide in 2017," he said on a call with reporters Thursday afternoon. "If things go well - big caveat - SpaceX will launch more rockets than any other country in 2018."
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  #1023  
Old 05-16-18, 07:41 AM
lotr10 lotr10 is offline
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Is the moon Europa where we first find extraterrestrial life?

https://arstechnica.com/science/2018...ume-on-europa/

Since Galileo's end, the Hubble Space Telescope has periodically observed the Jovian system. Sometimes, when the telescope has looked, it has observed water vapor emissions coming from the surface of Europa. This indicates the existence of periodic jets of water emanating from the moon's interior.

The prospect of the water gushing from the moon's interior has tantalized scientists, as that warm, vast interior ocean is thought to be one of the best places in the Solar System beyond Earth—if not the best—to look for extant life. Since the ice sheet covering Europa is thought to be at least several kilometers thick, being able to sample the ocean from space or the moon's surface would greatly aid this search.


And maybe we'll get off our butts and launch a mission to Europa designed to sample that ocean.

One ardent supporter of a mission to Europa, Texas Congressman John Culberson, broke the embargo on this news last week during a Congressional hearing on NASA's budget. “It’s worth noting that the scientific journal Nature Astronomy just reported that the Galileo mission, back in 1997, flew through a water plume on Europa 1,000 kilometers thick," Culberson said during an appropriations subcommittee markup in the House. "So the ocean of Europa is venting into outer space.”
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  #1024  
Old 05-18-18, 05:15 PM
lotr10 lotr10 is offline
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As if we don't have enough to worry about:

https://phys.org/news/2018-05-supern...tinctions.html

Two nearby supernovae that exploded about 2.5 and eight million years ago could have resulted in a staggered depletion of Earth's ozone layer, leading to a variety of repercussions for life on Earth.

In particular, two-and-a-half million years ago the Earth was changing dramatically. The Pliocene, which was a hot and balmy epoch, was ending and the Pleistocene, an era of repeated glaciation known as the Ice Age, was beginning. Natural variations in Earth's orbit and wobble likely accounted for the change in climate, but the simultaneous event of a supernova could provide insight on the diversification of life during this epoch.


The article offers some comfort as the earths atmosphere has protective aspects to defend against the radiation released from near by Super Novas but stuff like this reinforces there are dangers out there.
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  #1025  
Old 05-18-18, 07:24 PM
eastisbest eastisbest is offline
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Sure, not willing to consider that millions of Chinese and Indian chimneys would cause a "global warming" but perfectly willing to blame it on an innocent by-standing super-nova.
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  #1026  
Old 05-19-18, 06:31 AM
lotr10 lotr10 is offline
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Quote:
Originally Posted by eastisbest View Post
Sure, not willing to consider that millions of Chinese and Indian chimneys would cause a "global warming" but perfectly willing to blame it on an innocent by-standing super-nova.
EIB, I think a fascinating area of research is going to be how intra & inter solar system factors impact earths climate. Everything from cyclic "wobbles" in the earth's orbit around the sun to how "empty" (particle density) the local interstellar space is that the solar system is moving through. Keep in mind the earth does more than rotate through space around the sun, the entire solar system is racing outward through space from the galactic core.

Net, our interstellar environment changes every day!

Add to this the cyclic dynamics of the suns energy output and I wouldn't be surprised if the macro global climate isn't mostly set by extraterrestrial events. So yes, nearby super Nova would be expected to exert a greater GLOBAL effect on climate then millions of Indians burning dung.
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  #1027  
Old 05-19-18, 08:27 PM
eastisbest eastisbest is offline
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We've known since Genesis that the "macro global climate" is mostly set by extraterrestrial events.
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  #1028  
Old 05-21-18, 06:08 PM
lotr10 lotr10 is offline
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We'll this is a relief!

https://articles.syracuse.com/politi...mpression=true

After completing what they say is the first examination of Adolf Hitler's remains since World War II, a team of researchers has announced that the Nazi leader most definitely died in Berlin and, therefore, cannot possibly still be alive on the moon.

I had heard rumors Hitler was hiding out in Argentina or Brazil but this is the first time I've heard that he may have been on the MOON!
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  #1029  
Old 05-21-18, 06:10 PM
lotr10 lotr10 is offline
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Now this is good news, TESS is up and running perfectly:

https://www.digitaltrends.com/cool-t...r-first-image/


NASA’s new planet-hunting mission, the Transiting Exoplanet Survey Satellite (TESS), was launched on April 18. After getting accustomed to its new surroundings and doing a quick buzz past the moon, it’s already produced a stunning image that was just released by NASA. As part of the calibration sequence for one of its four on-board cameras, TESS captured a swatch of the sky that includes more than 200,000 stars.

The picture is of one crowded part of our Galaxy!
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  #1030  
Old 05-21-18, 06:24 PM
BlackHawk BlackHawk is offline
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Quote:
Originally Posted by lotr10 View Post
Now this is good news ...

... TESS captured a swatch of the sky that includes more than 200,000 stars. ...
I only counted 199,000 stars. Maybe I miscounted.

It's always good news when NASA has success with it's missions. Millions and sometimes billions of dollars are at stake. If they screw up, NASA rarely gets a do-over. I'm looking forward to what new knowledge TESS might find.
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  #1031  
Old 05-23-18, 08:54 PM
lotr10 lotr10 is offline
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They are starting to better define the criteria by which a planet might support Earth like life:

https://phys.org/news/2018-05-orbita...ll-states.html

Aspects of an otherwise Earthlike planet's tilt and orbital dynamics can severely affect its potential habitability—even triggering abrupt "snowball states" where oceans freeze and surface life is impossible, according to new research from astronomers at the University of Washington.

The research indicates that locating a planet in its host star's "habitable zone"—that swath of space just right to allow liquid water on an orbiting rocky planet's surface—isn't always enough evidence to judge potential habitability.
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  #1032  
Old 05-25-18, 07:12 AM
lotr10 lotr10 is offline
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If you want to know if extraterrestrial life exists study how life started on earth:

https://www.wired.com/story/35-billi...d&kwp_0=682818

Look closer. From a seam in one of these hills, a jumble of ancient, orange-Creamsicle rock spills forth: a deposit called the Apex Chert. Within this rock, viewable only through a microscope, there are tiny tubes. Some look like petroglyphs depicting a tornado; others resemble flattened worms. They are among the most controversial rock samples ever collected on this planet, and they might represent some of the oldest forms of life ever found.

Last month, researchers lobbed another salvo in the decades-long debate about the nature of these forms. They are indeed fossil life, and they date to 3.465 billion years ago, according to John Valley, a geochemist at the University of Wisconsin. If Valley and his team are right, the fossils imply that life diversified remarkably early in the planet’s tumultuous youth.


When all is said and done I suspect we'll find that life is ubiquitous throughout the Galaxy.
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