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In high definition: Astronomers capture most detailed-ever images of galaxies – WION

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Astronomers have published the most detailed images yet seen of galaxies beyond our own, revealing their inner workings in unprecedented detail. 

After almost a decade of work, the images were created from data collected by the Low-Frequency Array (LOFAR), a radio telescope.

LOFAR is a network of more than 70,000 small antennae spread across nine European counties, with its core in Exloo, the Netherlands. 

The new images push the boundaries of what we know about galaxies and supermassive black holes.

According to Dr. Neal Jackson of The University of Manchester, “These high-resolution images allow us to zoom in to see what’s really going on when super-massive black holes launch radio jets, which wasn’t possible before at frequencies near the FM radio band.”

Scientists believe that at some point, high-energy ultraviolet radiation from exploded stars split the intergalactic hydrogen atoms into electrons and protons. Once ionised, the hydrogen would be electrically conductive and no longer scatter light.

Those elements are forged by nuclear fusion inside stars, so either the galaxy contains the exploded remains of lots of massive stars or it formed in a region of space that had been previously seeded with the remnants of a prior generation of stars, scientists said.

“Our aim is that this allows the scientific community to use the whole European network of LOFAR telescopes for their own science, without having to spend years to become an expert,” said lead author Dr. Leah Morabito from Durham University.

The immense regions between star systems in a galaxy are not a complete vacuum. The stew of matter and radiation present in low densities, mostly gas, is called the interstellar medium.

About 15 per cent of the visible matter in our Milky Way galaxy is composed of this interstellar gas, dust, and energetic particles like cosmic rays.

Much of the interstellar medium is in what is called an ionised, or electrically charged, state called plasma.

Galaxies are surrounded by black holes that are extremely dense, with gravitational pulls so ferocious not even light escapes.

There are three categories of black holes. The smallest, like ‘the Unicorn,’ are so-called stellar-mass black holes formed by the gravitational collapse of a single star. There are gargantuan ‘supermassive’ black holes like the one at our galaxy’s center, 26,000 light-years from Earth, which is four million times the sun’s mass. A few intermediate-mass black holes also have been found with masses somewhere in between.

(With inputs from agencies)

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SpaceX’s Inspiration4 Crew Shares Photos of Earth from Space – Beebom

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If you are a space enthusiast like myself, I’m sure you love the mesmerizing views of the Earth from space shared by astronauts. Having said that, chances are you will love the breathtaking pictures recently shared by the astronauts in SpaceX’s Inspiration4 spacecraft, which took off from NASA’s Kennedy Space Center on September 15. It safely returned to Earth today.

The seven-seater SpaceX Crew Dragon spacecraft was recently launched from the Kennedy space center. Following the launch, astronauts from the Inspiration4 spacecraft shared four orbital photos of the Earth. You can check out the tweet right below.

The photos were taken from the cupola of the spacecraft, which is a dome-shaped, transparent viewing area that allows astronauts to get a unique glimpse of our planet from space. Not just that, SpaceX Inspiration4’s astronauts also shared a short video showing the sunset. You can check it out right here:

The astronauts include the Shift4 Payments CEO and founder Jared Isaacman, who financed the space mission and is currently the acting commander of the spacecraft, Air Force veteran Christopher Sembroski, physician assistant Hayley Arceneaux, and geoscientist Dr. Sian Proctor.

Now, it is worth mentioning that SpaceX’s Crew Dragon spacecraft can carry seven people onboard. However, the Inspiration4 mission only includes four astronauts aboard the spacecraft. As per reports, following the launch, the Inspiration4 spacecraft has now completed 15 orbits around Earth and is expected to complete a full orbit of the Earth every 90 minutes. If you want to monitor the progress of the flight, you can go to SpaceX’s official tracking website.

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More space tourism to come after Inspiration4 crew returns from successful mission | Watch News Videos Online – Globalnews.ca

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The first all-amateur crew to orbit the Earth without an astronaut aboard has safely returned. SpaceX founder Elon Musk picked them as his first rocket-riding tourists. As Jennifer Johnson reports, four more flights with paying customers are coming soon.

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World's first space tourists splash down in their SpaceX capsule after three days in orbit – Yahoo Eurosport UK

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Four space tourists safely splashed down in the Atlantic off the coast of Florida on Saturday, ending their trailblazing trip into orbit.

Their SpaceX capsule parachuted into the ocean just before sunset, not far from where their chartered flight began three days earlier.

SpaceX founder Elon Musk took them on as the company’s first rocket-riding tourists.

The fully automated Dragon capsule reached an unusually high altitude of miles 585km after Wednesday night’s liftoff, that’s 160km above the International Space Station.

The passengers were able to take in views of Earth through a big bubble-shaped window added to the top of the capsule.

For more on this story, watch the full report in the media player above.

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