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 Post subject: Re: Space Is Deep
PostPosted: Sun Mar 03, 2019 10:44 pm 
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 Post subject: Re: Space Is Deep
PostPosted: Mon Mar 04, 2019 10:42 am 
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 Post subject: Re: Space Is Deep
PostPosted: Wed Mar 20, 2019 12:04 pm 
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NASA's OSIRIS-REx probe has been flying in formation with the asteroid Bennu for about three months now. It's already made some interesting discoveries about the early Solar System; and more are expected.

But as far as I'm concerned, the coolest thing OSIRIS-REx has produced is this time-lapse GIF of Bennu rotating:
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 Post subject: Re: Space Is Deep
PostPosted: Wed Mar 20, 2019 4:04 pm 
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Location: Pouting for you? Punky Meadows, pouting for you?!!
@MTF: It is seriously cool that we can do things like that these days.

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 Post subject: Re: Space Is Deep
PostPosted: Sat Mar 23, 2019 2:34 am 
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 Post subject: Re: Space Is Deep
PostPosted: Wed Mar 27, 2019 4:03 am 
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ISS Lunar Transit. 14 March 2019, Geraldton Western Australia.
A bucket list image ticked off. Waited many a year for this to occur in my location.
Taken with a Canon 5D MKIV on a manual 8" Dob.


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 Post subject: Re: Space Is Deep
PostPosted: Thu Apr 04, 2019 12:19 am 
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 Post subject: Re: Space Is Deep
PostPosted: Thu Apr 04, 2019 9:15 am 
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The Event Horizon Telescope is an international collaboration aiming to capture the first image of a black hole by creating a virtual Earth-sized telescope.

https://eventhorizontelescope.org/

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 Post subject: Re: Space Is Deep
PostPosted: Wed Apr 10, 2019 5:33 am 
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This is the first photo of a black hole

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In April 2017, scientists used a global network of telescopes to see and capture the first-ever picture of a black hole, according to an announcement by researchers at the National Science Foundation Wednesday morning. They captured an image of the black hole at the center of a galaxy known as M87.

"We have seen what we thought was unseeable," said Sheperd Doeleman, director of the Event Horizon Telescope Collaboration. "We have seen and taken a picture of a black hole."

The Event Horizon Telescope Collaboration, called EHT, is a global network of telescopes that captured the first-ever photograph of a black hole.

In their attempt to capture an image of a black hole, scientists combined the power of eight radio telescopes around the world using Very-Long-Baseline-Interferometry, according to the European Southern Observatory, which is part of the EHT. This effectively creates a virtual telescope around the same size as the Earth itself.

Black holes are made up of huge amounts of matter squeezed into a small area, according to NASA, creating a massive gravitational field which draws in everything around it, including light.


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 Post subject: Re: Space Is Deep
PostPosted: Wed Apr 10, 2019 8:08 am 
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R. J. Matson
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 Post subject: Re: Space Is Deep
PostPosted: Thu Apr 11, 2019 3:16 am 
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 Post subject: Re: Space Is Deep
PostPosted: Thu Apr 11, 2019 10:11 am 
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Arend van Dam
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Steve Breen
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 Post subject: Re: Space Is Deep
PostPosted: Fri Apr 12, 2019 12:53 am 
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 Post subject: Re: Space Is Deep
PostPosted: Fri Apr 12, 2019 5:30 am 
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Arcadio Esquivel
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Kevin Siers
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David Fitzsimmons
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Bruce Plante
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Oguz Gurel
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Jeff Koterba Omaha
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Jimmy Margulies
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Bob Gorrell
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 Post subject: Re: Space Is Deep
PostPosted: Thu Apr 25, 2019 2:29 am 
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Rare eclipse of Saturn will be visible in parts of New Zealand
Brittney Deguara·20:56, Apr 25 2019

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supplied
From 12.30am, Saturn will be eclipsed by the moon - called a lunar occultation - making an incredible sight for various parts of the country.

Kiwi stargazers will be treated to a rare sight this Friday morning.

From 12.30am, Saturn will be eclipsed by the moon, creating an incredible sight for various parts of the country.

For about an hour - until 1.47am - the ringed planet will be hidden behind the moon - known as a lunar occultation.

Those in the northern parts of the country, including the hell hole that is Auckland, Taupo and Wellington will be among the first to witness it at 12.32 am, 12.35am and 12.39am respectively.

Locations in the South Island will follow shortly after with Christchurch, Dunedin and Invercargill viewing the eclipse at 12.42am, 12.47am and 12.48am.

However, viewing conditions aren't the best nationwide.

Met Service meteorologist Amy Rossiter told Stuff there's "quite a bit of cloud building up" around the country, thanks to a general westerly flow.

Auckland is currently experiencing some cloud and showers, but Wellington has clear skies at the moment and it "should stay that way for the rest of the night".

"The North Island [is] the best place to be, Wellington is better than Auckland," in terms of visibility for the eclipse, according to Rossiter.

"There are a few gaps around Auckland, they may get glimpses of it."

Heading to the South Island, the chance of seeing the eclipse from Christchurch is being hindered by low clouds, which could potentially turn into fog.

"It's not looking good for them [Christchurch] to see anything in the sky tonight."

Similarly, Invercargill has a little bit of cloud cover, making it "a bit touch and go whether they'll have clear enough skies".

However, Dunedin is shaping up to be an ideal place to see the rare event with mostly clear skies and only a few high clouds, "nothing too significant to hinder any views".

For those eager to see the eclipse, the Dunedin Astronomical Society advised on Facebook, "find a nice dark place where you can easily see the moon (and fairly bright 'dot' close by, which is Saturn) and take a pair of binos [binoculars] or a small scope".


Stuff

https://www.stuff.co.nz/national/112264 ... ew-zealand


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 Post subject: Re: Space Is Deep
PostPosted: Thu Apr 25, 2019 8:00 am 
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First Marsquake recorded!

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 Post subject: Re: Space Is Deep
PostPosted: Thu Apr 25, 2019 2:31 pm 
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Gray_Ghost wrote:
Those in the northern parts of the country, including the hell hole that is Auckland...


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 Post subject: Re: Space Is Deep
PostPosted: Thu May 02, 2019 10:27 am 
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Buzz Aldrin wants to have a word with you:
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 Post subject: Re: Space Is Deep
PostPosted: Fri May 03, 2019 10:33 pm 
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The Apollo 11 Lunar Module Timeline book, which was used by Neil Armstrong and Buzz Aldrin during their Moon landing, is up for auction.
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Christie's expects that the manual will go for between $7 million and $9 million...

(and yes, it does have traces of Moon dust on it)

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 Post subject: Re: Space Is Deep
PostPosted: Fri May 03, 2019 11:29 pm 
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MentalTossFlycoon wrote:
The Apollo 11 Lunar Module Timeline book, which was used by Neil Armstrong and Buzz Aldrin during their Moon landing, is up for auction.
Image
Christie's expects that the manual will go for between $7 million and $9 million...

(and yes, it does have traces of Moon dust on it)


that moon dust gets every where :lol:


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 Post subject: Re: Space Is Deep
PostPosted: Sat Jun 08, 2019 1:20 am 
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'Best ever' simulation solves 40-year black hole mystery
afp.com
57 mins ago

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© ALEXANDER TCHEKHOVSKOY, MATTHEW LISKA
A vertical slice of a black hole, created as scientists unveiled the most detailed simulation of one yet

Scientists on Thursday unveiled the most detailed simulation of a black hole yet, solving a mystery dating back more than four decades over how the star-devouring monsters consume matter.

Coming fresh on the heels of the first ever photo of one of the giant objects, which are scattered across the Universe, astrophysicists are now several steps closer to understanding how they form and develop.

A black hole is born when a large star collapses in on itself. Far from being a "hole", they are instead incredibly dense objects with a gravitational pull so strong that nothing, not even light, may escape them.

As they suck in matter such as gas, dust and space debris, they form an accretion disk -- a churning mass of super-accelerated particles that are among the brightest objects in the Universe -- around them.

It is the accretion disk that can be seen as a blurry halo around the image of the black hole released in April from the Event Horizon Telescope.

Image
© M. Kornmesser
This artist's impression of a black hole shows the accretion disk as a swirl of matter around the centre of the object

But accretion disks are nearly always tilted at an angle to the orientation of the black hole, known as its equatorial plane.

In 1975, Nobel Prize-winning physicist John Bardeen and astrophysicist Jacobus Petterson theorised that a rotating black hole would cause the inner region of a tilted accretion disk to line up with the black hole's equatorial plane.

But no model could ever work out how, precisely, that would happen. Until now.

Image
© Lynette Cook
For the first time scientists are understanding how black holes consume matter

A team of astrophysicists from Northwestern University, Oxford University, and the University of Amsterdam, used graphical processing units to crunch large sets of data and simulate how black holes interact with their accretion disks.

Crucially, their approach gave them the computing power to account for magnetic turbulence, which occurs when different particles churn at different speeds within the accretion disk.

It is precisely this electromagnetic effect that causes matter to fall to the centre of the black hole.

Alexander Tchekhovskoy, assistant professor of physics and astronomy at Northwestern's Weinberg College of Arts and Sciences, likened matter accumulating near a black hole to throwing a dart towards the board at random.

"If you don't really aim it will never hit the bullseye," he said. "In the same way, when (matter) falls into the black hole it has some rotation but this rotation will have nothing generally to do with how the black hole rotates. The two rotations will not know anything about each other."

- 'More confident predictions' -

Previous simulations manually predicted the additional friction their creators believed was needed to make matter move towards the black hole.

"Whereas now in our model, we don't have to postulate this friction," Tchekhovskoy told AFP. "We put in magnetic fields and these actually cause an instability that then causes friction and the disk falls in as a result."

Image
©
The image of a black hole taken by the Event Horizon Telescope shows the hole's accretion disk as a sort of golden halo around the invisible object

This might seem like a small detail but it directly affects how fast black holes spin and, consequently, what effect they have on the galaxies that surround them.

The simulation, which produces a disk with two jets of gas and magnetic fields protruding from the centre like fountains, shows the inner part of the accretion disk aligning perfectly with the black hole's equator even as the outer part remains at an angle.

"Before now there was a worry that when you take into account all the complications that come with matter interacting with a black hole, such as magnetic fields, the turbulence in the disk, the swirling motions -- those things might kill the alignment effect," said Tchekhovskoy.

"We found that, no, it doesn't kill it, actually the inner parts of the disk do align with the black hole and we can now more confidently make predictions about how black holes would look."

http://www.msn.com/en-nz/news/world/bes ... ocid=ientp


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 Post subject: Re: Space Is Deep
PostPosted: Sat Jun 08, 2019 11:22 pm 
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Trump criticises Nasa in tweet saying the moon is part of Mars
John Wagner and Christian Davenport·16:16, Jun 08 2019

US President Donald Trump has criticised Nasa for promoting its plan to return to the moon before human exploration of Mars, a strategy that Trump endorsed in a directive early in his tenure and championed as recently as last month.

"For all of the money we are spending, Nasa should NOT be talking about going to the Moon - We did that 50 years ago," Trump said on Twitter. "They should be focused on the much bigger things we are doing, including Mars (of which the Moon is a part), Defense and Science!"

The tweet, sent from Air Force One as Trump returned from a trip to Europe, did not make clear whether he thinks the strategy should be entirely abandoned or whether he was more concerned about how Nasa was branding the strategy.

A White House official sought to downplay any difference between what Trump had tweeted and existing policy.

"Our Administration's goal has always been to get to Mars," said the official, who was not authorised to speak publicly and requested anonymity, in an email. "We have asked Congress for additional resources to get to the Moon by 2024, which will enable us to get to Mars roughly a decade after creating a sustainable presence on the lunar surface. Under POTUS, America is leading again in space."

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US President Donald Trump has called the moon part of Mars in a tweet.

A tweet later Friday by Nasa Administrator Jim Bridenstine did little to clarify the impact of Trump's tweet.

"As @POTUS said, @NASA is using the Moon to send humans to Mars!" the tweet said. "Right now, @MarsCuriosity and @NASAInSight are on Mars and will soon be joined by the Mars 2020 rover and the Mars helicopter."

Trump's tweet was sent shortly after Fox Business host Neil Cavuto questioned on air why Nasa is "refocusing on the moon, the next sort of quest, if you will" and asked: "But didn't we do this moon thing quite a few decades ago?"

Image
Marshall Ritzel
US President Donald Trump is no longer happy with the direction Nasa is going in.

The policy of first going back to the moon grew from a unanimous recommendation by the new National Space Council, chaired by Vice President Pence, after its first meeting in October 2017.

At a ceremony where Trump signed a directive regarding the policy two months later, he said first returning to the moon would "establish a foundation for an eventual mission to Mars, and perhaps someday, to many worlds beyond."

In a tweet three weeks ago, Trump touted his administration's commitment to space exploration, writing: "Under my Administration, we are restoring @NASA to greatness and we are going back to the Moon, then Mars."

In a fiery speech in March, Pence announced that Nasa was moving its timeline for landing humans back on the moon up by four years, to 2024. He cast the mission as part of a new space race against superpowers such as Russia and China, which landed a spacecraft on the far side of the moon earlier this year.

Image
Pictured: Phobos, one of the moons of Mars.
In public documents, Nasa has argued that "exploration of the Moon and Mars is intertwined."

"The Moon provides an opportunity to test new tools, instruments and equipment that could be used on Mars, including human habitats, life support systems, and technologies and practices that could help us build self-sustaining outposts away from Earth," the agency says in one document available on its website.


The Washington Post


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 Post subject: Re: Space Is Deep
PostPosted: Sun Jun 09, 2019 12:22 pm 
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Gray_Ghost wrote:
Trump criticises Nasa in tweet saying the moon is part of Mars
Dave Whamond
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 Post subject: Re: Space Is Deep
PostPosted: Fri Jun 14, 2019 7:38 am 
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Star Trek on Mars: NASA spots Starfleet logo in dune footprint
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By Amanda Kooser
https://www.cnet.com/news/star-trek-on-mars-nasa-spots-starfleet-logo-in-dune-footprint/
June 12, 2019 12:50 PM PDT

NASA's Mars Reconnaissance Orbiter looks down on the Red Planet and sees all sorts of fantastical formations that resemble everything from Beaker the Muppet to Pac-Man. A new MRO view will inspire you to whip out your Vulcan salute.

The MRO HiRise camera team at the University of Arizona on Wednesday highlighted a Martian sand dune formation that could be a doppelganger for the classic swooping Starfleet logo.

"Enterprising viewers will make the discovery that these features look conspicuously like a famous logo," the team quipped.

The intriguing Mars formation has a long geologic history. It started as a crescent-shaped dune that became an island in a sea of lava, but the sand eventually blew away in the wind.

"These are also called 'dune casts' and record the presence of dunes that were surrounded by lava," planetary scientist Ross Beyer explained.

A wider MRO view of the landscape shows more of the insignia-like impressions.

Beyer made sure to point out the resemblance to the Star Trek logo is "only a coincidence." There is no credible evidence of Star Trek fans having reached the surface of Mars. Yet.


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 Post subject: Re: Space Is Deep
PostPosted: Sat Jun 15, 2019 12:27 am 
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Saturn's moons may have 'sculpted' its famous rings, new study suggests
Doyle Rice·12:38, June, 15th 2019

They're the solar system's most iconic feature, but how and when Saturn's rings formed have remained a mystery for centuries.

Now, a piece of the puzzle has been revealed: Astronomers believe the gravitational pull of Saturn's tiniest moons likely shaped and "sculpted" the rings, according to the new research, which details how the sculpting took place.

The rings themselves are made of small particles of ice and rocks, and, according to Nasa, are believed to be pieces of comets, asteroids or shattered moons that broke up before they reached the planet. It's exactly how they turned into rings that remains the mystery.

The new findings are based on data and hundreds of thousands of photos sent back from Nasa's Cassini spacecraft as it orbited the planet in 2017, shortly before it burned up in Saturn's atmosphere. Now, nearly two years after the end of the mission, researchers are still publishing new studies trying to better understand the features based on the data the spacecraft gathered, according to Space.com.

"Getting closer to the rings, getting higher resolution images..., we're starting to get new views, some of the best-ever views of some of the dynamics and evolution of what's going on in Saturn's rings," Nasa's Linda Spilker told Space.com.

Textures and patterns, from clumpy to strawlike, pop out of the images, Nasa said, and new images also reveal how colours, chemistry and temperatures change across the rings.

"These new details of how the moons are sculpting the rings in various ways provide a window into solar system formation, where you also have disks evolving under the influence of masses embedded within them," said study lead author and Cassini scientist Matt Tiscareno of the SETI Institute.

Image
NASA/JPL-CALTECH/SPACE SCIENCE INSTITUTE
This image was made as the Cassini spacecraft scanned across Saturn and its rings in 2016.

The rings also formed much later than did the planet. In fact, the rings are "relatively recent", scientists said, likely forming less than 100 million years ago and perhaps only 10 million years ago.

Saturn itself is some 4.5 billion years old, the same age as all the other planets in our solar system. This means that for most of its existence, Saturn was probably without its stunning rings.

"The results strongly suggest that Saturn's rings are much younger than Saturn itself and provide important clues to the origin of the rings and moons," said Shigeru Ida of the Tokyo Institute of Technology, in a review that accompanied the new study.

As for why Saturn has rings, "there is no clear reason why Saturn should be special in this way," Tiscareno said in an e-mail to USA TODAY. "One possible answer is that Saturn in fact is not special, but is simply the lucky planet that has rings at the time when we happen to live."

The final answer to how Saturn's rings formed - which has fascinated astronomers for hundreds of years - is still to come, however: "A clear answer to the long-standing question of when and how Saturn's rings formed has not yet been obtained, but the Cassini data provide important pieces of the puzzle," Ida said.

The new study was published in the peer-reviewed journal Science, a publication of the American Association for the Advancement of Science.

- USA Today

https://www.stuff.co.nz/science/1135133 ... y-suggests


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