Lifeboat Foundation

“What this new result does is provide a clearer picture of how our local universe has come together — it is telling us that at least in one of the large galaxies, there has been this sporadic feeding of small galaxies,” Lewis said in a press release.

Globular clusters are at the center of this research. They’re older associations of stars that have lower metallicity. There are at least 150 in the Milky Way, likely more. They play a role in the galactic evolution, but the role isn’t clearly understood. Globulars, as they’re known, are more prevalent in a galaxy’s halo, while their counterparts, open clusters, are found in the galactic disks.

The researchers behind this work identified a population of globulars in Andromeda’s inner halo that all have the same metallicity. Metallicity refers to the elemental makeup of stars, with elements heavier than hydrogen and helium referred to as metals in astronomy. The globulars have lower metallicity than most stars in the same region, meaning they came from elsewhere, not from Andromeda itself. It also means they’re older since there were fewer heavy elements in the early Universe than there are now. Lewis named the collection of globulars the Dulai Structure, which means black stream in Welsh.

https://www.youtube.com/watch?v=YO12_V3AE3M

Elon musk JUST REVEALED powerful dojo supercomputer that tripped the power grid!

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A new study that analyzed new data segments suggests there are around 300 million habitable planets in our Milky Way Galaxy alone.

A bizarre, volcanic comet has violently erupted, spewing out more than 1 million tons of gas, ice and the “potential building blocks of life” into the solar system.

When the New Horizons probe reached the outer dark of the Solar System, out past Pluto, its instruments picked up something strange.

Very, very faintly, the space between the stars was glowing with optical light. This in itself was not unexpected; this light is called the cosmic optical background, a faint luminescence from all the light sources in the Universe outside our galaxy.

The strange part was the amount of light. There was significantly more than scientists thought there should be – twice as much, in fact.

Recent data from Hubble suggests that the Universe is expanding at a rate of around 73km per megaparsec (3.26 million light-years).

Is the cosmos infinite? Do stars and spaces go on forever? Do the numbers of galaxies, and even of universes, have no end? Here’s how infinity enriches appreciation of reality. Featuring interviews with Martin Rees, Anthony Aguirre, Raphael Bousso, Sean Carroll, and Joshua Knobe.

Season 11, Episode 7 — #CloserToTruth.

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Year 2020 face_with_colon_three Propellant free thruster.

I usually approach papers on the subject of alternative thrusters with a certain degree of cynicism. But we’ve finally been given a study on microwave thrusters that doesn’t rely on impossible physics. Instead, it used a plain old plasma thruster.

Plasma thrusters have generally been thought of as a means of propulsion in space, but now one has been designed to operate under atmospheric conditions. According to the researchers involved, it’s an air plasma thruster that has the potential to produce the same thrust as a commercial jet engine.

Continue reading “Microwave thruster makes for clean-burning jet” »

Dongfeng Landing Site, Inner Mongolia, north China — Recent (CCTV — No access Chinese mainland) 10. Various of workers in preparation for Shenzhou-14 crew’s return 11. Fast motion of ground radar equipment; vehicles.

In Space — Recent (China Manned Space Agency — No access Chinese mainland) 12. Space station view taken by Tianhe panoramic camera c 13. Fast motion of space station.

The Shenzhou-14 crew, after staying at China’s space station for half a year and performing rotation with their Shenzhou-15 colleagues, is scheduled to return to Earth on Sunday.