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 Post subject: Re: Space Is Deep
PostPosted: Fri Jan 12, 2018 3:49 pm 
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Astronomers probe source of mysterious, powerful radio signal from beyond galaxy
LIAM MANNIX
Last updated 19:28, January 12 2018
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DANIELLE FUTSELAAR / SHUTTERSTOCK
The Arecibo telescope, in Puerto Rico, shown in this artist's impression receiving the fast radio burst.

Fast radio bursts beaming from beyond our galaxy, are astonishingly powerful, and nobody knows what – or who – is making them.

Now an international team of astronomers, including Australian scientists, have made a discovery that could start to unravel the mystery.

In a cover story published in Nature on Thursday, they report the bursts are coming from one of the most extreme and unusual objects ever seen – possibly a tiny but powerful star trapped in a field of ionised gas that has been spun off by a nebula, or been ejected from a supernova.
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The Green Bank telescope in West Virginia also received a flash from FRB 121102. The flash was extremely 'twisted'.

"We don't really know what's producing these bursts," says Dr Charlotte Sobey​, an astronomer at the International Centre for Radio Astronomy Research and CSIRO who worked on the discovery.

"But they have enormous power. As much energy is released in a single millisecond as the sun releases in a single day."

FRBs, as they are known, have fascinated astronomers since they were discovered in the archive data of NSW's Parkes radio telescope in 2007.

Enormously powerful bursts of radio waves that last for milliseconds, they have defied explanation for years – leading some to suggest they are the communications of some distant alien civilisation.

The team that made the discovery have been studying FRB 121102, an FRB source unique because its signal keeps repeating over and over.

They called in Dr Sobey, an expert in the rotation of light, when they noticed the signal had a unique attribute: extreme polarisation.

Polarised light is light that vibrates in only one direction. Light from the sun is unpolarised – its electric charges vibrate in multiple directions. Polarised glasses let in light that vibrates in only one direction, which is why they make things darker.

Dr Sobey immediately saw the light she had been asked to look at was very unusual. It was extremely polarised, about as polarised as any radio source can be.

More unusually, the light had been "twisted", she says, hitting the Earth like a corkscrew. This is usually caused by light moving through an extremely strong magnetic field generated by a field of dense ionised gas, known as plasma.

Dr Sobey realised she was looking at an "extreme object".

The FRB's polarisation points to one of two sources.

Most likely, the bursts are being generated by a tiny but energetic star that has become trapped within the dense plasma cloud of a powerful nebula. The star's polarised light is being twisted by the surrounding plasma before it reaches us.

That, or the star is trapped near a super-massive black hole, which could produce similar effects.

While the mystery is far from solved, Dr Sobey believes the evidence is now firmly stacked against FRBs being generated by alien life.

"I personally don't think it could be aliens. We have seen these FRBs come from lots of different directions in the sky, and we think it's very unlikely there are many different civilisations spread throughout this range in the universe that would all communicate using the same kind of technique.

"It also needs a lot of power to generate these type of signals, so we think it must be of astrophysical origin."

- smh.com.au

https://www.stuff.co.nz/technology/1005 ... ond-galaxy

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 Post subject: Re: Space Is Deep
PostPosted: Sat Jan 20, 2018 10:31 am 
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 Post subject: Re: Space Is Deep
PostPosted: Sat Jan 20, 2018 1:18 pm 
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^^^^^ :lol: ^^^^^

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 Post subject: Re: Space Is Deep
PostPosted: Sun Jan 21, 2018 2:55 am 
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Incredible 'Hypatia' Stone Contains Compounds Not Found in the Solar System

"Named for Hypatia of Alexandria, the first prominent Western woman astronomer and mathematician, the colorful rock was found in 1996 in western Egypt by Aly Barakat, a geologist working for the Egyptian Geological Survey. Barakat was studying Libyan desert glass, which appears to be similar to sea glass from the ocean, except geologists believe it might have formed roughly 28 million years ago in a meteorite impact.

Barakat immediately recognized the unique significance of the glossy stone, lined with microscopic diamonds, and he suspected that it did not come from Earth. In 2013, geologists studying the Hypatia stone confirmed the rock was of extraterrestrial origin. Unlike any known meteorite, researchers originally believed the Hypatia stone was the first sample of a comet nucleus."

http://www.popularmechanics.com/science ... ar-system/


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 Post subject: Re: Space Is Deep
PostPosted: Fri Jan 26, 2018 9:05 pm 
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Super blue blood moon eclipse on the cards

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At a time of year when the sun tends to monopolise attention, the moon is getting in on the act with a triple whammy.

Three unusual lunar events will coincide on Wednesday night: a blue moon, a super moonand a blood moon.

A blue moon signifies two new moons during the same month, because the moon's orbit does not coincide completely with the calendar.

A super moon is when the moon gets the closest to earth.

And a blood moon or total lunar eclipse happens when the earth, sun and moon are all lined up, making the moon appear red.

Physics professor Richard Easther of Auckland University said even for someone in his profession, it was going to be a special event.

"To be corny, it's a majesty of the heavens...I don't want to wax too poetic but the same human instincts that makes the sky cool for everybody certainly works for astrophysicists."

Professor Richard Easther - Super blue blood moon eclipse (15 min 30 sec)

It will be the first time a super blue blood moon has occurred on the same night since 31 March,1866.

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

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 Post subject: Re: Space Is Deep
PostPosted: Wed Jan 31, 2018 12:42 am 
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Tonight's the night for the Super Blue Blood Moon Eclipse from around midnight through to one a.m. local time, complete with a Dark Side of the Moon soundtrack.....

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 Post subject: Re: Space Is Deep
PostPosted: Fri Feb 02, 2018 2:22 am 
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 Post subject: Re: Space Is Deep
PostPosted: Tue Feb 06, 2018 1:46 pm 
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Ground control to Major Tom - we have LIFT OFF! Moment the World's most powerful space rocket fires a Tesla Roadster to MARS - while the car plays Bowie's Space Oddity on its stereo (for the benefit of the crash test dummy behind its wheel)

'Falcon Heavy' has finally blasted off from Cape Canaveral in a historic launch for Elon Musk's SpaceX
The massive three-core rocket is carrying Musk's red Tesla Roadster, with a dummy inside dubbed Starman
Powered by 27 engines, the rocket features three reusable cores that will return to Earth after liftoff
Main module will separate and release the car, sending it to the orbit of Mars 140 million miles away
The test will mark the first time SpaceX has flown its new, high-capacity rocket following months of delays



Read more: http://www.dailymail.co.uk/sciencetech/article-5356825/Video-reveals-Elon-Musks-car-fired-MARS.html



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 Post subject: Re: Space Is Deep
PostPosted: Tue Feb 06, 2018 4:02 pm 
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Elon must be a "Heavy Metal" fan!

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https://www.youtube.com/watch?v=DWMPe3wF9jQ

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 Post subject: Re: Space Is Deep
PostPosted: Wed Feb 07, 2018 9:57 pm 
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just plain doug wrote:
Elon must be a "Heavy Metal" fan!

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https://www.youtube.com/watch?v=DWMPe3wF9jQ


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:?

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 Post subject: Re: Space Is Deep
PostPosted: Thu Feb 08, 2018 1:39 am 
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Listen to Falcon Heavy’s side boosters send six sonic booms roaring across the land.


http://bgr.com/2018/02/07/spacex-sonic- ... r-landing/

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 Post subject: Re: Space Is Deep
PostPosted: Thu Feb 08, 2018 7:59 am 
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So what time do we start cleaning all the other spacejunk from Earth orbit?
The Elon Musk space-car -although out of Earth orbit- appears no more spectacular that dumping a helicopter off the side of an aircraft carrier and into the ocean.

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Talk about Cosmic Debris! :P

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 Post subject: Re: Space Is Deep
PostPosted: Fri Feb 16, 2018 10:08 am 
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Andromeda Galaxy Brought Down To Size for Head-to-Head Collision With Milky Way
http://www.msn.com/en-nz/news/world/and ... ocid=ientp

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 Post subject: Re: Space Is Deep
PostPosted: Wed Feb 21, 2018 9:43 pm 
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If you're in California and happen to be an early riser, you might want to check this out.

SpaceX will be launching a Falcon 9 rocket from Vandenberg Launch Complex. The launch is scheduled for Thursday, Feb. 22, at 6:17 a.m. PST.

You may remember the last SpaceX launch from Vandenberg.

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Instead of happening half an hour after sunset, this one will happen half an hour before sunrise. The effect should be about the same.

Disclaimer: this launch has already been delayed three times. You may want to check on the launch status:

http://www.spacex.com/

If it goes as planned, you'll probably be seeing it in the news...

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 Post subject: Re: Space Is Deep
PostPosted: Wed Feb 21, 2018 9:50 pm 
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Cheers MTF 8)

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 Post subject: Re: Space Is Deep
PostPosted: Wed Mar 21, 2018 5:33 pm 
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 Post subject: Re: Space Is Deep
PostPosted: Wed Mar 21, 2018 10:02 pm 
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coevad wrote:
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:shock: Jeff Simmons didn't make the list.....not an object, but..... :lol:

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 Post subject: Re: Space Is Deep
PostPosted: Sat Mar 31, 2018 11:16 am 
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In case you're worried about that Chinese space station falling on your head, this tracker shows where it is:

http://www.heavens-above.com/GroundTrack.aspx

Its orbit has been decaying, and the best estimate is that it will fall to Earth late Sunday (central European time).

But the uncertainty is about 24 hours. It could fall pretty much anywhere...

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 Post subject: Re: Space Is Deep
PostPosted: Sun Apr 01, 2018 1:42 pm 
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coevad wrote:
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I owned a Gibson Les Paul. I agree 100%.
You must be 6'3'' to be at ease with that guitar.
Tired of having my back hurting after 30 minutes of play, I sold it 500$. I lost 300$.
:P

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 Post subject: Re: Space Is Deep
PostPosted: Tue Apr 03, 2018 3:28 pm 
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Due to a phenomenon known as gravitational lensing - where the gravitational field of one object can magnify the image of a more distant object - the Hubble Telescope was able to resolve a single star more than nine billion light years away.

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 Post subject: Re: Space Is Deep
PostPosted: Fri Apr 06, 2018 8:42 am 
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The centre of the Milky Way is teeming with black holes
SETH BORENSTEIN
Last updated 09:22, April 5 2018

For decades, scientists theorised that circling in the centre of galaxies, including ours, were lots of stellar black holes, collapsed giant stars where the gravity is so strong even light doesn't get out. But they hadn't seen evidence of them in the Milky Way core until now.

Astronomers pouring over old x-ray observations have found signs of a dozen black holes in the inner circle of the Milky Way. And since most black holes can't even be spotted that way, they calculate that there are likely thousands of them there. They estimate it could be about 10,000, maybe more, according to a study in Wednesday's journal Nature.
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COLUMBIA UNIVERSITY/AP
The supermassive black hole at the center of the Milky Way is surrounded by a swarm of smaller black holes, according to new research. Scientists were able to pinpoint at least 12 black hole binaries, where a black hole is siphoning material from a companion star.

"There's lots of action going on there,'' said study lead author Chuck Hailey, a Columbia University astrophysicist. "The galactic centre is a strange place. That's why people like to study it.''

The stellar black holes are in addition to - and essentially circling - the already known supermassive black hole, called Sagittarius A , that's parked at the centre of the Milky Way.

In the rest of the massive Milky Way, scientists have only spotted about five dozen black holes so far, Hailey said.

The newly discovered black holes are within about 30.9 trillion kilometres of the supermassive black hole at the centre. So there's still a lot of empty space and gas amid all those black holes. But if you took the equivalent space around Earth there would be zero black holes, not thousands, Hailey said.

Earth is in spiral arm around 3000 light years away from the centre of the galaxy. (A light year is 9.5 trillion kilometres.)

Harvard astronomer Avi Loeb, who wasn't part of the study, praised the finding as exciting but confirming what scientists had long expected.

The newly confirmed black holes are about 10 times the mass of our sun, as opposed to the central supermassive black hole, which has the mass of 4 million suns. Also the ones spotted are only the type that are binary, where a black hole has partnered with another star and together they emit large amount of x-rays as the star's outer layer is sucked into the black hole. Those x-rays are what astronomers observe.

When astronomers look at closer binary black hole systems they could then see the ratio between what's visible and what's too faint to be observed from far away. Using that ratio, Hailey figures that even though they only spotted a dozen there must be 300 to 500 binary black hole systems.

But binary black hole systems are likely only 5 per cent of all black holes, so that means there are really thousands of them, Hailey said.

There are good reasons the Milky Way's black holes tend to be in the centre of the galaxy, Hailey said.

First, their mass tends to pull them to the centre. But mostly the centre of the galaxy is the perfect "hot house'' for black hole formation, with lots of dust and gas.

Hailey said it is "sort of like a little farm where you have all the right conditions to produce and hold on to a large number of black holes.''

- AP

https://www.stuff.co.nz/world/102835468 ... lack-holes

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 Post subject: Re: Space Is Deep
PostPosted: Sat Apr 07, 2018 3:17 pm 
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Gullies of Matara Crater on Mars

Photo from the Mars Reconnaissance Orbiter/ NASA

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 Post subject: Re: Space Is Deep
PostPosted: Thu Apr 12, 2018 7:04 am 
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Nasa released a virtual tour of the Moon in 4k resolution, based on data provided by their Lunar Reconnaissance Orbiter spacecraft.

https://www.cnn.com/videos/world/2018/0 ... n-orig.cnn

https://sservi.nasa.gov/articles/video-tour-moon/


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 Post subject: Re: Space Is Deep
PostPosted: Thu Apr 12, 2018 7:39 am 
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Mr. Nice Guy wrote:
Nasa released a virtual tour of the Moon in 4k resolution, based on data provided by their Lunar Reconnaissance Orbiter spacecraft.

https://www.cnn.com/videos/world/2018/0 ... n-orig.cnn

https://sservi.nasa.gov/articles/video-tour-moon/



After they airbrushed out the ancient structures... :idea:


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 Post subject: Re: Space Is Deep
PostPosted: Sat Apr 14, 2018 8:45 pm 
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World's First Luxury Space Hotel to Launch by 2022

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Houston-based Orion Span hopes to launch the "first luxury hotel in space" -- the 35-by-14 foot Aurora Station -- by late 2021 and bring guests on board the following year. The hotel will accommodate up to four travelers and two crew members at a time, racing them around the planet at high speeds for 12 days, the company said in a news release.

Adventurers pay $9.5 million per person -- or about $791,666 a night -- and their $80,000 deposit can already be reserved online, company officials said. But don't fear: The deposit is fully refundable.

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