Don't wanna be here? Send us removal request.
Text
My fellow Americans, it is with great pleasure that I announce that at least one politician has learn that actions do in fact have consequences.
At around 3:00 PM EDT, a motion to vacate went through, and Kevin McCarthy is no longer speaker of the House. Sources later confirmed that he said he will not run for speaker in the upcoming speaker election. As of now, Patrick McHenry is the temporary speaker.
This is a truly historic moment in US history and in US politics, as this is the first time a speaker has ever been voted out of office.
This could very well mark the beginning of a major conflict within the GOP that will hopefully result in the moderates regaining control of the party after Trump nearly finished them off.
Either way, this will at least prevent the GOP from doing anything too damaging in the meantime.
1 note
·
View note
Text
3 notes
·
View notes
Text
With NASA announcing their streaming service NASA+ and also announcing it’s going to be free and also ad free, I’d just like to appreciate the lengths they go to make scientific knowledge and exploration as available as they possibly can.
87K notes
·
View notes
Text
PLEASE SIGNAL BOOST THIS! RUSSIA HAS BLOWN UP THE KHAKIBKA HYDROELECTROSTATION DAM AND IS FLOODING COUNTLESS UKRAINIAN TOWNS AND VILLAGES! THIS IS THE BIGGEST ECOLOGICAL CATASTROPHE IN EUROPE SINCE CHORNOBYL! Post written and provided by @ohsalome: Now, the situation is desperate. I know I've bothered you with donations recently, but this is a time-sensitive matter. I've collected several organisations that are currently helping to evacuate people from the territory that is/will be soon flooded. Please, please, send them any cent you can and signal boost this, the things are really BAD and we need as much help as we can get: Vostok SOS helps people evacuate from dangerous territories, since the beginning of the war they've already helped 46 000 people. Elderly and disabled people are of an extra need of assistance. Helping to leave is another organization that has been helping evacuate people from occupied territories, and is currently gathering funds to help people in Kherson region.
Denys Fedko is a volunteer who currently collects money for fuel, which is always in short stock during war; and general evacuation needs.
PEOPLE ARE DROWNING, THE ECOLOGICAL SYSTEMS ARE BEING WIPED OUT! THIS IS SOME OF THE MOST FERTILE SOIL ON THE EARTH, WHICH HAS BEEN GROWING GRAIN FOR EXPORT TO HUNDEREDS OF COUNTRIES, INCLUDING THE ONES MOST DEPENDANT ON FOREIGN EXPORTS!
18K notes
·
View notes
Photo
Astronomers observe the first radiation belt seen outside of our solar system
High-resolution imaging of radio emissions from an ultracool dwarf show a double-lobed structure like the radiation belts of Jupiter
Astronomers have described the first radiation belt observed outside our solar system, using a coordinated array of 39 radio dishes from Hawaii to Germany to obtain high-resolution images. The images of persistent, intense radio emissions from an ultracool dwarf reveal the presence of a cloud of high-energy electrons trapped in the object’s powerful magnetic field, forming a double-lobed structure analogous to radio images of Jupiter’s radiation belts.
“We are actually imaging the magnetosphere of our target by observing the radio-emitting plasma—its radiation belt—in the magnetosphere. That has never been done before for something the size of a gas giant planet outside of our solar system,” said Melodie Kao, a postdoctoral fellow at UC Santa Cruz and first author of a paper on the new findings published May 15 in Nature.
Strong magnetic fields form a “magnetic bubble” around a planet called a magnetosphere, which can trap and accelerate particles to near the speed of light. All the planets in our solar system that have such magnetic fields, including Earth, as well as Jupiter and the other giant planets, have radiation belts consisting of these high-energy charged particles trapped by the planet’s magnetic field.
Earth’s radiation belts, known as the Van Allen belts, are large donut-shaped zones of high-energy particles captured from solar winds by the magnetic field. Most of the particles in Jupiter’s belts are from volcanoes on its moon Io. If you could put them side by side, the radiation belt that Kao and her team have imaged would be 10 million times brighter than Jupiter’s.
Particles deflected by the magnetic field toward the poles generate auroras (“northern lights”) when they interact with the atmosphere, and Kao’s team also obtained the first image capable of differentiating between the location of an object’s aurora and its radiation belts outside our solar system.
The ultracool dwarf imaged in this study straddles the boundary between low-mass stars and massive brown dwarfs. “While the formation of stars and planets can be different, the physics inside of them can be very similar in that mushy part of the mass continuum connecting low-mass stars to brown dwarfs and gas giant planets,” Kao explained.
Characterizing the strength and shape of the magnetic fields of this class of objects is largely uncharted terrain, she said. Using their theoretical understanding of these systems and numerical models, planetary scientists can predict the strength and shape of a planet’s magnetic field, but they haven’t had a good way to easily test those predictions.
“Auroras can be used to measure the strength of the magnetic field, but not the shape. We designed this experiment to showcase a method for assessing the shapes of magnetic fields on brown dwarfs and eventually exoplanets,” Kao said.
The strength and shape of the magnetic field can be an important factor in determining a planet’s habitability. “When we’re thinking about the habitability of exoplanets, the role of their magnetic fields in maintaining a stable environment is something to consider in addition to things like the atmosphere and climate,” Kao said.
To generate a magnetic field, a planet’s interior must be hot enough to have electrically conducting fluids, which in the case of Earth is the molten iron in its core. In Jupiter, the conducting fluid is hydrogen under so much pressure it becomes metallic. Metallic hydrogen probably also generates magnetic fields in brown dwarfs, Kao said, while in the interiors of stars the conducting fluid is ionized hydrogen.
The ultracool dwarf known as LSR J1835+3259 was the only object Kao felt confident would yield the high-quality data needed to resolve its radiation belts.
“Now that we’ve established that this particular kind of steady-state, low-level radio emission traces radiation belts in the large-scale magnetic fields of these objects, when we see that kind of emission from brown dwarfs—and eventually from gas giant exoplanets—we can more confidently say they probably have a big magnetic field, even if our telescope isn’t big enough to see the shape of it,” Kao said, adding that she is looking forward to when the Next Generation Very Large Array, currently being planned by the National Radio Astronomy Observatory (NRAO), can image many more extrasolar radiation belts.
“This is a critical first step in finding many more such objects and honing our skills to search for smaller and smaller magnetospheres, eventually enabling us to study those of potentially habitable, Earth-size planets,” said coauthor Evgenya Shkolnik at Arizona State University, who has been studying the magnetic fields and habitability of planets for many years.
The team used the High Sensitivity Array, consisting of 39 radio dishes coordinated by the NRAO in the United States and the Effelsberg radio telescope operated by the Max Planck Institute for Radio Astronomy in Germany.
“By combining radio dishes from across the world, we can make incredibly high-resolution images to see things no one has ever seen before. Our image is comparable to reading the top row of an eye chart in California while standing in Washington, D.C.,” said coauthor Jackie Villadsen at Bucknell University.
Kao emphasized that this discovery was a true team effort, relying heavily on the observational expertise of co-first author Amy Mioduszewski at NRAO in planning the study and analyzing the data, as well as the multiwavelength stellar flare expertise of Villadsen and Shkolnik. This work was supported by NASA and the Heising-Simons Foundation.
TOP IMAGE….Artist’s impression of an aurora and the surrounding radiation belt of the ultracool dwarf LSR J1835+3259. Image credit: Chuck Carter, Melodie Kao, Heising-Simons Foundation
CENTRE IMAGE….The first images of an extrasolar radiation belt were obtained by combining 39 radio telescopes to form a virtual telescope spanning the globe from Hawaii to Germany. Image credit: Melodie Kao, Amy Mioduszewski
LOWER IMAGE….The electron radiation belt and aurora of an ultracool dwarf were imaged by combining 39 radio telescopes to form a virtual telescope spanning the globe from Hawaii to Germany. Image credit: Melodie Kao, Amy Mioduszewski
44 notes
·
View notes