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Dec 5, 2022

An iconic nearby astronomical object has been stealing stars from other galaxies

Posted by in categories: evolution, space

“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.

Dec 5, 2022

Elon Musk JUST REVEALED His NEW Secret Weapon That Will CHANGE EVERYTHING!

Posted by in categories: Elon Musk, internet, space, supercomputing, sustainability

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

🔔 Subscribe now with all notifications on for more Elon Musk, SpaceX, and Tesla videos!

Continue reading “Elon Musk JUST REVEALED His NEW Secret Weapon That Will CHANGE EVERYTHING!” »

Dec 4, 2022

New Estimates Suggest There Are Around 300 Million Habitable Planets in Our Galaxy

Posted by in category: space

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

Dec 4, 2022

Massive eruption from icy volcanic comet detected in solar system

Posted by in category: space

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.

Dec 4, 2022

An Unexpected Source Might Be Helping The Universe Glow More Than It Should

Posted by in category: space

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.

Continue reading “An Unexpected Source Might Be Helping The Universe Glow More Than It Should” »

Dec 4, 2022

If the universe is expanding, how are the Milky Way and Andromeda getting closer together?

Posted by in category: space

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

Dec 4, 2022

What Would an Infinite Cosmos Mean? | Episode 1107 | Closer To Truth

Posted by in category: space

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.

Continue reading “What Would an Infinite Cosmos Mean? | Episode 1107 | Closer To Truth” »

Dec 3, 2022

Microwave thruster makes for clean-burning jet

Posted by in categories: energy, physics, space

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” »

Dec 3, 2022

In Space/China-In-orbit Rotation/Return

Posted by in category: space

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.

Dec 3, 2022

Astronomers spot an incoming small asteroid — and make a big breakthrough

Posted by in categories: innovation, space

That meteor, now known as 2022 WJ1, was first noticed by the Catalina Sky Survey at around midnight Eastern on that date (the time zone in which it ended up landing). Catalina is one of the most prolific discoverers of asteroids and is a crucial link in the planetary defense chain. A NASA press release details the steps that come afterward that result in a successful landing prediction.

The 2022 WJ1 was pretty small, only about one meter wide, and posed no actual threat to anyone or anything on the ground. But the planetary defense network is designed to catch much bigger potential threats. The fact that it reacted with such speed shows that it is becoming more and more capable and will be much more likely to find any potentially devastating events, such as the Chelyabinsk meteor in 2013, which caused 1,400 injuries and around $33 million in property damage.

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