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Space: The Final Frontier


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9 hours ago, nudge said:

There's a massive geomagnetic storm happening in the last few days, and as a result, beautiful auroras have been visible in places where they are not common at all, even reaching mid-Europe... Anyone caught it last night??? There's a good chance of it happening tonight, too!

Our daughter has just text me this photo she took a few minutes ago from her flat window here in Edinburgh :x

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Venus and Jupiter were so clearly visible today. When I went to the shops this evening, I thought I saw a helicopter with it's lights on in the corner of my eye. But when it didn't move, I checked again, and it was Venus. Amazing. 

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Rare ultramassive black hole is 33 billion times heavier than our sun

The cosmic monster is one of the biggest black holes ever found.

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Black holes are heavy. They are the densest objects in the universe, so massive that their gravitational pull doesn’t even let light escape (hence the name).

 

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Hubble Views an Intriguing Active Galaxy

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This luminous image from the NASA/ESA Hubble Space Telescope shows Z 229-15, a celestial object that lies about 390 million light-years from Earth in the constellation Lyra. Z 229-15 is one of those interesting celestial objects defined as several different things: sometimes as an active galactic nucleus (an AGN); sometimes as a quasar; and sometimes as a Seyfert galaxy. Which of these is Z 229-15 really? The answer is that it is all these things all at once, because these three definitions have significant overlap.

An AGN is a small region at the heart of certain galaxies (called active galaxies) that is far brighter than just the galaxy’s stars would be. The extra luminosity is due to the presence of a supermassive black hole at the galaxy’s core. Material sucked into a black hole doesn’t fall directly into it, but instead is drawn into a swirling disk, from where it is inexorably tugged towards the black hole. This disk of matter gets so hot that it releases a large amount of energy across the electromagnetic spectrum, and that’s what makes AGNs appear so bright.

Quasars are a particular type of AGN; they are typically both extremely bright and extremely distant from Earth – several hundred million light-years is considered nearby for a quasar, making Z 229-15 positively local. Often an AGN is so bright that the rest of the galaxy cannot be seen, but Seyfert galaxies are active galaxies that host very bright AGNs (quasars) while the rest of the galaxy is still observable. So Z 229-15 is a Seyfert galaxy that contains a quasar, and that, by definition, hosts an AGN. Classification in astronomy can be a challenge!

Text credit: European Space Agency (ESA)
Image credit: ESA/Hubble & NASA, A. Barth, R. Mushotzky

https://www.nasa.gov/image-feature/goddard/2023/hubble-views-an-intriguing-active-galaxy

 

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Meet Adelaide’s ‘space brickie’

From Lego, to designing space architecture.

With NASA planning a crewed lunar landing as soon as 2025, there’s questions about how to best build longer term shelters for humans on the Moon.

One scientist who is taking this question seriously is Monika Stankiewicz. She’s a PhD student in Lunar architecture at the University of Adelaide, and she’s focused on how to build structures using bricks made of lunar dirt.

“My life keeps coming back to bricks. I played with Lego bricks as a kid, then my first job out of out of my bachelor’s degree was at Austral Bricks working in the brick factory,” says Stankiewicz.

“When I found out that space architecture is a field and I was like, ‘Oh my god, that’s so cool. I want to go there’.

“Then got to my capstone project, which is what this is about, which is also about bricks as basically an alternative way of building regolith shelters on the moon.”

https://cosmosmagazine.com/australia/monika-stankiewicz-moon-bricks-adelaide-space/

 

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Historic Nebula Seen Like Never Before With NASA's IXPE

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This image of the Crab Nebula combines data from NASA’s Imaging X-ray Polarimetry Explorer (IXPE) in magenta and NASA’s Chandra X-ray Observatory in dark purple.
Credits: X-ray (IXPE: NASA), (Chandra: NASA/CXC/SAO) Image processing: NASA/CXC/SAO/K. Arcand & L. Frattare

 

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Mysterious dark matter mapped in finest detail yet

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It's being described as the most detailed ever map of the influence of dark matter through cosmic history.

A telescope in Chile has traced the distribution of this mysterious stuff on a quarter of the sky and across almost 14 billion years of time.

The result is once again a spectacular confirmation of Einstein's ideas..........

 

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Nasa's JPL snake robot explores extreme terrain

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Nasa's JPL snake robot explores extreme terrain

Nasa's Jet Propulsion Laboratory is developing an exobiology extant life surveyor (EELS). It was conceived to explore diverse terrains and ultimately search for evidence of life.

It was tested in Canada's Athabasca glacier and Mount Meager volcano. This expedition was made possible by the Trebek Initiative, a partnership between the Royal Canadian Geographical Society and National Geographic.

 

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Astronomers have directly detected a massive exoplanet. The method could transform the search for life beyond Earth

The planet is twice the size of our sun.

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Simon J. Murphy,
University of Southern Queensland

Finding life on other planets might well be the holy grail of astronomy, but the hunt for suitable host planets that can sustain life is a resource-intensive task.............

 

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On 14/04/2023 at 13:28, Tommy said:

 

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First pictures from JUICE spacecraft released after launch

Jupiter explorer sets off for 12-year adventure.

The European Space Agency’s JUICE mission has successfully launched, putting into action a decade-long mission to chart three of Jupiter’s largest moons.

 

 

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Earth’s new semi-trailer sized “quasi-moon” joined us 2,100 years ago

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Astronomers have found an asteroid tagging along with Earth on our yearly journey around the sun, making it a newly discovered “quasi-moon.”

The asteroid measures about 15 to 20 metres in diameter, or about the length of a semi-trailer. It is approximately 14 million kilometres from Earth – nearly 40 times further from Earth than the Moon.....

 

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Instrument searching for dark energy releases first data

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First insights from the Dark Energy Spectroscopic Instrument (DESI) have been released, bringing us a step closer to understanding our expanding universe.

DESI’s scientific mission is to try and understand the invisible and mysterious phenomenon known as “dark energy” that appears to be pushing everything in the cosmos apart.

You could be excused for thinking that the law of gravity should mean that all the galaxies must be coming closer together, not drifting apart. We can make sense of this spreading in terms of the big bang. 13.8 billion years ago the universe exploded out of a single point. It therefore makes sense that it might be expanding. But there’s more......

 

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The ESA (European Space Agency) and SpaceX are targeting no earlier than 11:11 a.m. EDT Saturday, July 1, to launch the Euclid spacecraft. Euclid is an ESA mission with contributions from NASA that will shed light on the nature of dark matter and dark energy, two of the biggest modern mysteries about the universe.

Liftoff will be from Cape Canaveral Space Force Station in Florida, on a SpaceX Falcon 9 rocket. NASA is contributing to the Euclid mission by delivering critical hardware for one of the spacecraft’s instruments, providing science team funding, and establishing a U.S.-based Euclid data processing center. Experts from NASA who are participating in Euclid are available for interviews upon request.

Live launch coverage from ESA will air on NASA Television, the NASA app, and the agency’s website starting July 1, at 10:30 a.m. Follow online at:

https://www.nasa.gov/live

 

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Milky Way: Icy observatory reveals 'ghost particles'

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An astronomical detector buried in Antarctic ice has provided a view of our Galaxy that has never been seen before.

The blurry, extraordinary image is of the Milky Way, but it is composed of the "ghostly" particles that are emitted by the reactions that power stars.

The particles are neutrinos, which are extremely difficult to detect on Earth.

To find them, scientists turned a vast block of Antarctic ice into a detector.......

 

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Earth formed from dry clumps, suggesting water came later

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Our blue planet is covered in oceans and teeming with life. But it wasn’t always like that – and new research suggests that Earth formed billions of years ago from dry, rocky clumps and that water arrived on our planet later.......

 

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India launch their rocket today to the moon!

The Chandrayaan-3 sets off in about 10 minutes. Then takes approx 1 month to orbit earth and then go into the Moon's orbit and hopefully soft-land on the South Pole of the moon.

 

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Andes’ optical telescope snaps rare double-lobe nebula

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A mere 1,200 light years away from Earth sits a pair of cosmic circles, the remains of an ancient death.

The nebula IC2220 – or the Toby Jug Nebula – has been snapped by the Gemini South telescope, an 8.1 metre optical and infrared telescope in the Chilean Andes, which makes up one half of the International Gemini Observatory......

 

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Aeolus: 'Impossible satellite' takes fiery plunge to Earth

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Final commands were sent to Europe's Aeolus satellite on Friday to bring it out of the sky.

The space laser, which was designed to map Earth's winds, was expected to burn up somewhere over the Atlantic Ocean.

Any debris that might have survived the fiery descent through the atmosphere should now be on the seabed.....

 

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