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 Post subject: Re: Space Is Deep
PostPosted: Tue Nov 15, 2016 12:54 am 
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Cloudy sky.....No super moon tonight.... :x

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 Post subject: Re: Space Is Deep
PostPosted: Tue Nov 15, 2016 11:40 am 
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Blue Dwarf(nebula) Galaxy

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 Post subject: Re: Space Is Deep
PostPosted: Tue Nov 15, 2016 12:08 pm 
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Gray_Ghost wrote:
Cloudy sky.....No super moon tonight.... :x

Too cloudy to see the Supermoon tonight? Simply place a 12" flour tortilla on your window for that authentic experience.

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 Post subject: Re: Space Is Deep
PostPosted: Tue Nov 15, 2016 12:24 pm 
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just plain doug wrote:
Gray_Ghost wrote:
Cloudy sky.....No super moon tonight.... :x

Too cloudy to see the Supermoon tonight? Simply place a 12" flour tortilla on your window for that authentic experience.

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perfect :lol:

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 Post subject: Re: Space Is Deep
PostPosted: Sat Nov 19, 2016 3:31 am 
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The Universe’s Perfect Sphere Gets Discovered

The universe is filled with geometrical patterns. From the perfect symmetry in a snowflake to Fibonacci spirals in cabbage, we see it everywhere.

Scientists from the Max Planck Institute finally found the universe’s perfect sphere. Kepler 1145123, nearly 5,000 light-years from Earth, now holds the record for the most spherical object in the galaxy.

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One would assume that stars, moons and other planets would automatically be spherical. Isn’t the earth already a perfect sphere? With each rotation of a planet’s axis, the planet itself can’t maintain a spherical shape.

Kepler, however, hasn’t been flattened as it spins. The gaseous sphere remains intact, even more round than the sun, according to researchers.

The researchers calculated a difference between equatorial and polar radii of the star at only 3 km. By comparison, our Sun has a 10 km difference between the two. Earth has 21 km difference between polar and equatorial radii.

The team notes 3 km is “a number that is astonishing small compared to the star’s mean radius of 1.5 million km; which means that the gas sphere is astonishingly round,” they reported.

What can be credited for the star’s roundness? The research team of asteroseismologists, led by Laurent Gizon, said the slow spin of Kepler helps enormously. The faster a cosmic body spins, the more it loses its spherical shape and the more it oblates.

Kepler spins three times slower than our Sun despite being twice the size of our Sun.

Asteroseismology dedicates itself to the study of oscillations in cosmic bodies, and it normally relies on separating sound waves coming from a star’s core.

The team separated the wavelengths of Kepler and determined the interior of the star rotates slower than its exterior.

“This is what is likely causing the unusually round (or less ‘oblate’) shape – because of the disconnect between surface and core, the star is not spinning quite as much as may appear just by looking at it from the outside,” said writer Michael Byrne of Motherboard.

http://interestingengineering.com/the-universes-perfect-sphere-gets-discovered/

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 Post subject: Re: Space Is Deep
PostPosted: Sun Nov 20, 2016 11:36 am 
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On Saturday evening NASA launched GOES-R, the first of four satellites that will revolutionize weather forecasting.

Gozer had no comment...
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 Post subject: Re: Space Is Deep
PostPosted: Sat Nov 26, 2016 8:10 pm 
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The Cassini spacecraft is setting up for its final set of orbits around Saturn.

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In this picture, the blue lines (which are actually one continuous line) show previous orbits Cassini has followed over its 12-year tour of Saturn and its moons. The yellow lines show the orbit Cassini will follow over the next ten months, as it samples and analyzes material in the rings. Finally, on 15 September, 2017, Cassini will crash into Saturn and be destroyed.

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 Post subject: Re: Space Is Deep
PostPosted: Thu Dec 08, 2016 3:50 pm 
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 Post subject: Re: Space Is Deep
PostPosted: Thu Jan 05, 2017 3:39 pm 
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Here's a new image from NASA'a Chandra X-Ray Observatory:
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They aimed the telescope at a dark patch of space about half-a-degree across, and left the shutter open for 7 million seconds (about 2.5 months).

Most of the objects seen in this image correspond to supermassive black holes at the center of galaxies.

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 Post subject: Re: Space Is Deep
PostPosted: Mon Jan 09, 2017 10:48 pm 
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Our moon may have formed from multiple small ones

Last updated 11:49, January 10 2017

A series of cosmic collisions may have spawned multiple moonlets that morphed into the one big moon we know today.

Rather than one giant impact that knocked off part of early Earth and created the moon, a number of smaller collisions may have produced lots of mini-moons, Israeli scientists reported on Monday.

And those mini-moons, over millions of years, may have clumped together to make one large one.

The researchers conducted nearly 1000 computer simulations and estimate about 20 impacts could do the job. They say that would explain why the moon seems to be composed of material from Earth, rather than some other planet, too.

It's actually an old theory, revitalised now by the Weizmann Institute of Science's Raluca Rufu in Rehovot and his team. Their findings were published in Nature Geoscience.

"Our model suggests that the ancient Earth once hosted a series of moons, each one formed from a different collision with the proto-Earth," said co-author Hagai Perets of the Technion, Israel Institute of Technology in Haifa.

Rufu added in the same statement: "It's likely that small moons formed through the process could cross orbits, collide and merge."

Small collisions like this were common in the early solar system, and support their premise. But a London scientist not associated with the study – Imperial College's Gareth Collins – is urging more evidence on both sides of the moon-forming argument.

Some of the moonlets surely were lost in space or did not merge properly with what was to become today's moon, Collins said in a companion article, and so many more impacts may have been required. That, in turn, would make the multi-impact theory "far less probable than any of the more exotic single-impact scenarios," he wrote.

Rufu and his colleagues agree more work is needed to understand how moonlets might indeed merge into one final moon.

- AP

http://www.stuff.co.nz/science/88267639 ... small-ones

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PostPosted: Sat Jan 14, 2017 12:33 pm 
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Scientists: Moon over the hill at 4.51 billion years old

MARCIA DUNN

Last updated 21:31, January 14 2017

It turns out the moon is older than many scientists suspected: a ripe 4.51 billion years old.

That's the newest estimate, thanks to rocks and soil collected by the Apollo 14 moonwalkers in 1971.

A research team reported on Wednesday that the moon formed within 60 million years of the birth of the solar system. Previous estimates ranged within 100 million years, all the way out to 200 million years after the solar system's creation, not quite 4.6 billion years ago.

The scientists conducted uranium-lead dating on fragments of the mineral zircon extracted from Apollo 14 lunar samples. The pieces of zircon were minuscule - no bigger than a grain of sand.

"Size doesn't matter, they record amazing information nonetheless!'' lead author Melanie Barboni of the University of California, Los Angeles, US, said in an email.

She noted that the moon holds "so much magic... the key to understand how our beautiful Earth formed and evolved.''

The moon was created from debris knocked off from Earth, which itself is thought to be roughly 4.54 billion years old.

Some of the eight zircon samples were used in a previous study, also conducted at UCLA, that utilised more limited techniques. Barboni said she is studying more zircons from Apollo 14 samples, but doesn't expect it to change her estimate of 4.51 billion years for the moon's age, possibly 4.52 billion years at the most.

"It would be more a double-checking than anything else,'' she explained. She and her colleagues - whose work appeared on Wednesday in the journal Science Advances - are eager to learn more about the moon's history and, in turn, the evolution of early Earth and the entire solar system.

Apollo 14's Alan Shepard and Edgar Mitchell collected 92 pounds (41.7kg) of rocks and used tubes to dig up soil while exploring the moon's Fra Mauro highlands in February 1971. They conducted two spacewalks, spending nine hours altogether out on the lunar surface.

It's the second major moon study this week.

On Monday, Israeli scientists suggested our Earth's constant companion may actually be a melting pot of many mini-moons. Rather than one giant impact that shaved off a chunk of Earth and formed the moon, a series of smaller collisions may have created multiple moonlets that eventually merged into one, according to the researchers.

Barboni said regardless of how the moon came to be - one big strike at Earth, many smaller ones or even none at all - "you still end up at the end solidifying the moon as we know it today".

The giant impact theory holds that the resulting energy formed a lunar lava ocean that later became solid. It's this solidification age that Barboni and her team have now ascertained.

"We finally pinned down a minimum age for the moon formation,'' she said, "regardless of how it formed.''

- Comments are now closed on this story.

- AP

http://www.stuff.co.nz/world/88422992/s ... -years-old

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 Post subject: Re: Space Is Deep
PostPosted: Fri Jan 27, 2017 7:20 pm 
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Today is the 50th anniversary of the Apollo 1 fire, which killed astronauts Virgil "Gus" Grissom, Ed White and Roger Chaffee.
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Had he lived, Grissom likely would have been the first man to walk on the Moon...

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 Post subject: Re: Space Is Deep
PostPosted: Tue Feb 07, 2017 8:25 pm 
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Here's a new picture of Saturn's moon Enceladus, from the Cassini spacecraft:
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 Post subject: Re: Space Is Deep
PostPosted: Tue Feb 07, 2017 10:25 pm 
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Brain Space

https://youtu.be/mKMMnZgfcWM


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 Post subject: Re: Space Is Deep
PostPosted: Sat Feb 18, 2017 9:32 pm 
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Astronomers discover 114 new planets

Last updated 19:53, February 14 2017

Astronomers have found 114 new planets, 60 of which are orbiting stars near the Earth's solar system.

The most notable is described as a hot "super-Earth" with a rocky surface located in the fourth nearest star system to the Sun, the Daily Mail reported.

The planet has been named Gliese 411b and shows "virtually all" the nearest stars to the sun have planets orbiting them and some of these "could be like Earth".

Keck Observatory in Hawaii features the world’s largest and most scientifically productive optical and infrared telescopes.

The results are based on observations of 1600 stars taken over a 20-year period by US astronomers using the giant Keck-I telescope in Hawaii.

The Daily Mail reported the observations were part of the Lick-Carnegie Exoplanet Survey, which was started in 1996 by astronomers Steve Vogt and Geoffrey Marcy from the University of California and Paul Butler, from the Carnegie Institute of Science, in Washington.

Dr Mikko Tuomi of the University of Hertfordshire said: "It is fascinating to think that when we look at the nearest stars, all of them appear to have planets orbiting them.

"This is something astronomers were not convinced about, even as little as five years ago.

"These new planets also help us better understand the formation processes of planetary systems and provide interesting targets for future efforts to image the planets directly."

The group's paper has been accepted for publication in The Astrophysical Journal, the Daily Mail reported.

- Stuff

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 Post subject: Re: Space Is Deep
PostPosted: Wed Feb 22, 2017 5:51 pm 
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 Post subject: Re: Space Is Deep
PostPosted: Sat Feb 25, 2017 9:54 am 
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E0102, a supernova remnant in the Small Magellanic Cloud.

Photo from NASA'a Chandra X-ray Observatory...

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 Post subject: Re: Space Is Deep
PostPosted: Sat Feb 25, 2017 1:43 pm 
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Bright lights above NZ could have been a rocket and meteor

Last updated 14:57, February 25 2017

Rockets which launch spacecraft for the International Space Station tend to fall into the ocean east of New Zealand.

Bright lights seen in the sky throughout much of the country overnight on Friday may have been several different events, including part of a Russian spacecraft burning up.

Dozens of people from Auckland to Invercargill have reported seeing the lights, and some also heard a boom or a bang. Many of the sightings were around 10.20pm, but there were others from as early as 8.30pm to around midnight.

Probably the most common description of the events was that they were bright. Colours seen included green, blue, orange, white, red/green/white, green/red, and blue/yellow.

Stardome astronomer Dr Grant Christie said the multiple colours supported suggestions people may have seen the casing from a Russian rocket entering the atmosphere.

The projected decay orbits for the third stage of the Soyuz U rocket after a cargo and refuelling mission at the International Space Station.

A Soyuz rocket lifted off from Kazakhstan on Wednesday carrying a spacecraft taking food and equipment to the International Space Station.

The Progress spacecraft docked with the ISS on Friday morning, and the third stage of the Soyuz U rocket was due to complete its "decay phase" on Friday night. The rocket burning up may have also been visible in Victoria and Tasmania in Australia.

"The clue is that the reports ... were that there were a lot of coloured parts. That usually signifies the break up of a rocket, which is made up of lots of different kinds of materials," Christie said.

Rocket re-entries were not unusual.

"Most people who are launching to service the space station, or other things ... the rocket itself doesn't go into orbit, it falls back. They adjust their trajectory so they basically fall into the ocean well to the east of New Zealand. That means they are burning up as they pass over us."

Several previous re-entry events had been reported, particularly from the South Island, Christie said. Parts of a rocket burning up could be visible for a minute or two, at a rough estimate.

Given the spread of time in some of the reports, it was possible more than one part of the rocket had entered the atmosphere.

Meteors were usually going much faster than rocket parts and might only be visible for a few seconds. A large meteor could produce a boom.

Dr Claire Bretherton, science curator at Museums Wellington, said people who reported seeing something that was orange and red may have seen a meteor, while the reports of different colours could indicate other people saw some sort of space debris.

It was always extremely difficult to be more precise about something she hadn't seen herself, or when she hadn't had a chance to talk to people who did see it.

The varying times reported indicated people had seen different events, "different meteors or different parts of space debris burning up", Bretherton said.

Palmerston North Astronomical Society publicity officer Noel Munford said a bright greenish object described in some reports was likely a very bright meteor, or possibly even a fireball (an even brighter meteor).

"While not personally seeing the object, the likelihood of it being a bright meteor to fireball is almost 95 per cent. I say this for many reasons. One, the colour given in many of the reports is very typical of a fireball as it smashes through the atmosphere at supersonic speeds. The duration of visibility being just a couple of seconds is also very typical," Munford said.

A police spokesman said they had "a few calls" about the object.

WITNESS ACCOUNTS

"Whilst staying in Nelson with my daughter at approximately 10.20pm, we saw a hub-shaped bright light shooting past and over our roof and out towards sea at Atawhai. It was over in seconds," one eye-witness said.

Sam Hill said: "I saw 2 bright lights in the sky around 9.40pm tonight that were definitely not planes. One was very bright and travelling in a south-easterly direction and another heading north. In the Pohangina Valley, Manawatu."

Bern Healy said: "Saw the meteor on route between lake Wanaka and Lake Hawea at about 10 18pm Friday night. Very bright red green and white streak heading east to west in the low northern sky."

From Josh Coote in Stoke, near Nelson: "We noticed a shooting star that got brighter and brighter. Within a second the meteor turned bright blue and lit up the entire sky for about two seconds before burning out towards the western ranges. We did not hear the loud bang that other people heard. We noticed a trail that lasted a few seconds after the meteor was no longer visible."

Kevin McMullan said: "I was driving South around Marton and saw a bright green object, like a flare, except green not red, dropping out of the sky in the west. As I saw it over a house, I couldn't tell whether it was a real big firework, or something else. Looked pretty cool. I didn't hear anything, however I was doing 100km in an old ute, would have had to be pretty loud for me to hear it."

Libby Coleman said: "Sitting outside in Hanmer springs, I saw what I initially thought was a bright shooting star. It got brighter as it traveled and then appeared to explode, lighting up the entire sky. AMAZING SIGHT."

Marcia Elliot said: "We are in Wreys Bush/Wairio in western Southland. My kids and I witnessed what I am sure looked like a fireball at approx 11.34pm. It travelled across the sky from east to west and had a distinct tail. Visible for about five to six seconds. We also witnessed numerous shooting stars and a smaller orange meteor shortly before the big one at 11.34pm."

- Stuff

http://www.stuff.co.nz/science/89800333 ... ew-zealand

I didn't see a thing!

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PostPosted: Sat Mar 11, 2017 5:43 pm 
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Mystery flashes may be aliens at work, say scientists

ROBERT MENDICK

Last updated 00:50, March 12 2017

Hold on to your lightsabers and brace yourself for hyperspace. A team from Harvard University suspects mysterious energy flashes detected in galaxies far, far away may be caused by a species of super-advanced aliens firing up their interstellar spacecraft.

It is a scientific development that, if true, would make Star Wars more akin to an historical documentary than a nonsensical bit of sci-fi movie-making.

The scientists at the respected Harvard-Smithsonian Centre for Astrophysics have come up with what they believe is a possible explanation for the existence of Fast Radio Bursts - or FRBs - that were discovered a decade ago.

FRBs are intense radio pulses that last no more than a millisecond that emanate from remote galaxies billions of light years away. They were first detected in 2007 by the world's largest radio telescopes, but 10 years on astrophysicists remain no clearer about what produced them.

Enter the team from Harvard with a theory to make Darth Vader splutter in his mask. Or as Yoda might say: "Aliens there are, maybe". Professor Avi Loeb and his colleague Dr Manasvi Lingam have published a study offering up one possible theory. They say the FRBs could be evidence of aliens hard at work and that the bursts may be leaked energy from unimaginably powerful transmitters capable of sending giant light sail ships on voyages between stars.

Prof Loeb said: "Fast radio bursts are exceedingly bright given their short duration and origin at great distances, and we haven't identified a possible natural source with any confidence. An artificial origin is worth contemplating and checking."

In their study, accepted for publication in the Astrophysical Journal Letters, Prof Loeb and Dr Lingam looked at the feasibility of building a radio transmitter powerful enough to be detectable across such immense distances. They said that a solar-powered system would generate the required amount of energy if it used an area twice the size of Earth to capture the sun's rays.

The Harvard team speculates that the purpose of such a giant solar-powered energy plant is to drive interstellar light sails. A light sail uses the tiny amount of pressure exerted by light to produce acceleration that allows a spacecraft to attain great speeds. Energy levels responsible for FRBs would be enough to push a payload of a million tons - 20 times the mass of the largest cruise ships on Earth. "That's big enough to carry living passengers across interstellar or even intergalactic distances," Dr Lingam said.

Prof Loeb has admitted the work is speculative and Dr Simon Foster, star of the TV science show Duck Quacks Don't Echo, said he was sceptical aliens were the cause of FRBs. "We just don't know what these things are," he said. "It would be lovely if it was aliens."


- The Telegraph, London

http://www.stuff.co.nz/science/90332801 ... scientists

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PostPosted: Sat Mar 11, 2017 6:08 pm 
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Gray_Ghost wrote:
...and his colleague Dr Manasvi Lingam

lin·gam
ˈliNGɡəm/
noun
HINDUISM
a symbol of divine generative energy, especially a phallus or phallic object worshiped as a symbol of Shiva.

The guy's a dick.

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 Post subject: Re: Space Is Deep
PostPosted: Tue Mar 14, 2017 12:35 am 
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White dwarf X9: Black hole-orbiting star travels an astonishing 12 million kilometres per hour


While scientists have found this configuration before, it's the closest orbit ever seen between a black hole and a companion star.


Evidence has been discovered of a star orbiting a black hole at just 2½ times the distance between the Earth and moon.

Astronomically speaking, at a million kilometres, that's very, very close.

No star before has been discovered lingering so near a black hole.

Data taken from a telescope array in NSW has convinced astronomers that the star system 14,000 light years away is most likely that of a white dwarf and black hole locked in a tight orbital dance.

The white dwarf star X9 orbits what is very likely a black hole every 28 minutes at an astonishing 12 million kilometres an hour.

That's 1 per cent of the speed of light.

"This white dwarf is so close to the black hole that material is being pulled away from the star and dumped onto a disk of matter around the black hole before [that matter] falls in," said lead author of the study, Arash Bahramian, from the University of Alberta in Canada.

Astronomers made the discovery using the Australia Telescope Compact Array, operated by CSIRO near Narrabri in NSW, backed up with data from two of Nasa's space telescopes, Chandra X-ray Observatory and NuStar.

Until the ATCA data came through in 2015, astronomers thought the binary system was what is known as a "cataclysmic variable", where a white dwarf draws mass from a nearby sun-like star.

Vlad Tudor, a PhD student at Curtin University who worked on the study, said: "We detected strong radio jets from the system in 2015. These were not compatible with a cataclysmic variable system."

"We think the star might have been losing gas to the black hole for tens of millions of years and has now lost the majority of its mass," said co-author of the study, Associate Professor James Miller-Jones from Curtin University and the International Centre for Radio Astronomy Research.

Professor Geraint Lewis from the University of Sydney, who was not part of the study, said: "Finding these rare black holes is import as they are not only the end points of massive stars, produced in supernova explosions, they also continue to play a role in the evolution of other stars after their deaths."

So will the star collapse into the black hole? Miller-Jones said that while most of the gas from the star will be stripped off, this decline in mass will actually see the white dwarf move further from the black hole, to conserve angular momentum of the system.

He said there were various formation scenarios for the unusual binary system.

The stellar dance between the two objects is taking place inside a globular cluster 47 Tucanae, a group of about a million stars orbiting the galactic centre about 15,000 light years from Earth.

Globular clusters have much higher stellar density than other galactic space, so a collision between a star and the black hole is the most likely process.

"The nearest star to our solar system is Proxima Centauri about four light years away. If you were in the centre of this globular cluster there would be 100,000 stars within this distance," Tudor said.

A collision between a red giant star and the black hole could have led to the current system, with mass lost through the emission of gravitational waves.

Tudor said current gravitational wave detectors operated by LIGO could not pick up emissions from this system, but space-based detectors expected to be launched in the 2030s could detect them.

Miller-Jones said the next step will be to determine the mass of the objects. He estimates the white dwarf will only have a mass a few per cent that of the sun and have a planet-sized diameter.

- Sydney Morning Herald

http://www.stuff.co.nz/science/90427496 ... s-per-hour

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 Post subject: Re: Space Is Deep
PostPosted: Fri Apr 14, 2017 10:32 pm 
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As the Cassini probe begins the Grand Finale of its thirteen-year tour of Saturn and its moons, let's take a look at some of the stranger ones.

There's Atlas, which looks like a flying saucer:
Image

And Pan, which looks like a ravioli:
Image

And Mimas, which looks like a....
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That's right: a Death Star...

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 Post subject: Re: Space Is Deep
PostPosted: Fri Apr 14, 2017 11:08 pm 
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^^^^^ excellent ^^^^^

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 Post subject: Re: Space Is Deep
PostPosted: Fri Apr 21, 2017 11:44 am 
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That white dot in the center of the picture is Earth...

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 Post subject: Re: Space Is Deep
PostPosted: Sat Apr 22, 2017 11:31 am 
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This morning, SpaceX launched a Falcon 9 rocket from Cape Canaveral. Its purpose was to put the SES-10 communications satellite into orbit.
Once the rocket was out of the atmosphere, they ejected the fairing that protected the satellite during launch. This photograph verified that the fairing had ejected successfully.
The folks at SpaceX thought it was a cool picture, so they posted it on their Facebook page.
And but also, this is the first time SpaceX has reused a launch vehicle recovered from a previous mission.
Happy Earth Day...

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