The "Science and Space" Thread #2

ekim68

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Odd Martian meteorites traced back to largest volcanic structure in the solar system

https://www.msn.com/en-us/news/worl...ans-for-potential-ukraine-invasion/ar-AAQYl4e

About a million years ago, an asteroid smacked into the normally tranquil surface of Mars. The impact released a fountain of debris, and some of the rocky fragments pierced the sky, escaping the planet’s gravity to journey through the dark.

Some of the rocks eventually found their way to Earth and survived the plunge through our planet’s atmosphere to thud into the surface–including a hefty 15-pound shard that crashed into Morocco in 2011.
 

ekim68

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The space debris problem is getting dangerous


Russia shot down one of its Soviet-era satellites in a weapons test on Monday, sending more than 1,500 pieces of trackable debris into space. This forced astronauts on the International Space Station to shelter for about two hours in two spacecraft that could return them to Earth in the event of an imminent collision. While the ISS appears to be in the clear for now, experts say the situation is still dangerous. Satellite operators will likely need to navigate around this new cloud of space junk for several years and possibly decades.
 

ekim68

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NASA Mars lander makes 1st ever map of Red Planet underground by listening to winds


Researchers have created the first-ever map of the Martian underground by listening to the sound of wind reverberating through the layers of soil and rock near Mars' equator.

The team used instruments on board NASA's InSight probe, which landed in the flat Elysium Planitia in 2018 to study weak "marsquakes" rippling through the planet. InSight's data has previously enabled scientists to get a rough idea of the size and composition of Mars' core, as well as the nature of its mantle and thickness of its crust.
 

ekim68

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Astronomers spot "invisible" galaxies at the dawn of the universe


Astronomers have spotted two “invisible” galaxies hiding near the dawn of the universe. The team used radio waves to peer behind a curtain of dust that was obscuring them from view, and the find suggests that there were far more galaxies in the early universe than previously thought.

The Hubble Space Telescope is one of our most powerful cosmic eyes, able to see objects more than 13 billion light-years away. And because space and time are so intertwined, the objects it sees at that distance are seen as they were 13 billion years ago, allowing astronomers to effectively look back in time to the universe’s early childhood.
 

ekim68

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Parker Solar Probe sets new distance and speed records on solar slingshot


NASA's Parker Solar Probe has set a new pair of records after it survived its 10th close encounter with the Sun. On November 21, 2021 at 4:25 am EST (08:25 GMT), the robotic deep-space explorer came within 5.3 million miles (8.5 million km) of the Sun's surface and reached a speed of 363,660 mph (586,864 km/h), making it both the closest satellite to survive such a near pass of the Sun and the fastest-ever artificial object.
satellite.jpg
 

ekim68

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"Ghost particles" detected in the Large Hadron Collider for first time


Physicists have detected “ghost particles” in the Large Hadron Collider for the first time. An experiment called FASER picked up telltale signals of neutrinos being produced in particle collisions, which can help scientists better understand key physics.

Neutrinos are elementary particles that are electrically neutral, extremely light and rarely interact with particles of matter. That makes them tricky to detect, even though they’re very common – in fact, there are billions of neutrinos streaming through your body right now. Because of this, they’re often described as ghost particles.
 

ekim68

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Closest pair of supermassive black holes headed for monster merger


Astronomers have discovered the closest pair of supermassive black holes yet known – and that record has two meanings. Not only are they the closest pair to Earth, but they’re the closest to each other as well, barreling towards each other for an eventual monster merger.

The two black holes are located in a galaxy called NGC 7727, about 89 million light-years from Earth. That might sound like a long way, but in cosmic terms it’s a mere stone’s throw, and far closer than the previous record holders at 470 million light-years. Of course, the closest single supermassive black hole is Sagittarius A*, which lurks at the center of the Milky Way just 26,000 light-years away.
 

ekim68

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The Kardashev scale: Classifying alien civilizations

The Kardashev scale is a classification system for hypothetical extraterrestrial civilizations. The scale includes three categories based on how much energy a civilization is using.

Kardashev describes type I as a "technological level close to the level presently attained on the Earth," type II as "a civilization capable of harnessing the energy radiated by its own star" and type III as "a civilization in possession of energy on the scale of its own galaxy."
 

ekim68

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How NASA's new laser communications mission will work in space


The Laser Communications Relay Demonstration will launch on the United States Space Force Space Test Program 3 (STP-3) mission no earlier than Dec. 5 at 4:04 a.m. EST (0904 GMT). You can watch the rocket launch Sunday online courtesy of United Launch Alliance, which is flying the mission on an Atlas V rocket.

"This will be our first foray into understanding, what does it mean to use lasers to communicate and really connect directly to Earth and space users?" Jason Mitchell, Director of SCaN Advanced Communications & Navigation Technology Division at NASA, told Space.com in a recent video interview.
 

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