((IS THIS LEGIT????))
(They’ve been working on it for a bit now.)
((Yea I know that, but I mean the logo.))
((IS THIS LEGIT????))
(They’ve been working on it for a bit now.)
❝How am I still even alive?
Even I don’t fucking know…❞
Four Supernova Remnants: NASA’s Chandra X-ray Observatory Celebrates 15th Anniversary
- To celebrate Chandra’s 15th anniversary, four newly processed images of supernova remnants have been released.
- The Tycho and G292.0+1.8 supernova remnants show expanding debris from an exploded star and the associated shock waves.
- The images of the Crab Nebula and 3C58 show how neutron stars produced by a supernova can create clouds of high-energy particles.
In commemoration of the 15th anniversary of NASA’s Chandra X-ray Observatory, four newly processed images of supernova remnants dramatically illustrate Chandra’s unique ability to explore high-energy processes in the cosmos (see the accompanyingpress release).
The images of the Tycho and G292.0+1.8 supernova remnants show how Chandra can trace the expanding debris of an exploded star and the associated shock waves that rumble through interstellar space at speeds of millions of miles per hour. The images of the Crab Nebula and 3C58 show how extremely dense, rapidly rotatingneutron stars produced when a massive star explodes can create clouds of high-energy particles light years across that glow brightly in X-rays.
More than four centuries after Danish astronomer Tycho Brahe first observed the supernova that bears his name, the supernova remnant it created is now a bright source of X-rays. The supersonic expansion of the exploded star produced a shock wave moving outward into the surrounding interstellar gas, and another, reverse shock wave moving back into the expanding stellar debris. This Chandra image of Tycho reveals the dynamics of the explosion in exquisite detail. The outer shock has produced a rapidly moving shell of extremely high-energy electrons (blue), and the reverse shock has heated the expanding debris to millions of degrees (red and green). There is evidence from the Chandra data that these shock waves may be responsible for some of the cosmic rays - ultra-energetic particles - that pervade the Galaxy and constantly bombard the Earth.
At a distance of about 20,000 light years, G292.0+1.8 is one of only three supernova remnants in the Milky Way known to contain large amounts of oxygen. These oxygen-rich supernovas are of great interest to astronomers because they are one of the primary sources of the heavy elements (that is, everything other than hydrogen and helium) necessary to form planets and people. The X-ray image from Chandra shows a rapidly expanding, intricately structured, debris field that contains, along with oxygen (yellow and orange), other elements such as magnesium (green) and silicon and sulfur (blue) that were forged in the star before it exploded.
The Crab Nebula:
In 1054 AD, Chinese astronomers and others around the world noticed a new bright object in the sky. This “new star” was, in fact, the supernova explosion that created what is now called the Crab Nebula. At the center of the Crab Nebula is an extremely dense, rapidly rotating neutron star left behind by the explosion. The neutron star, also known as a pulsar, is spewing out a blizzard of high-energy particles, producing the expanding X-ray nebula seen by Chandra. In this new image, lower-energy X-rays from Chandra are red, medium energy X-rays are green, and the highest-energy X-rays are blue.
3C58 is the remnant of a supernova observed in the year 1181 AD by Chinese and Japanese astronomers. This new Chandra image shows the center of 3C58, which contains a rapidly spinning neutron star surrounded by a thick ring, or torus, of X-ray emission. The pulsar also has produced jets of X-rays blasting away from it to both the left and right, and extending trillions of miles. These jets are responsible for creating the elaborate web of loops and swirls revealed in the X-ray data. These features, similar to those found in the Crab, are evidence that 3C58 and others like it are capable of generating both swarms of high-energy particles and powerful magnetic fields. In this image, low, medium, and high-energy X-rays detected by Chandra are red, green, and blue respectively.
Image Credit: NASA/CXC/SAO
❝Oh sweet Zeus…❞ She mumbled when Gabe decided to bring up that infamous holo of her crawling out of the giant war machine with her hair fluffed up from the static electricity. She had to act as part of the circuit to make sure that the Titan functioned while Rune piloted it. Needless to say, it wasn’t exactly her idea of fun. She pressed the palm to her forehead, hoping that the sensationalization of being the “girl who rolled around and got beat up during the invasion” would die out. Apparently it hasn’t…
She couldn’t help suppress a smile when one of the twins made a quip about the whole fiasco. Yet, she remained embarrassed by the amount of publicity and attention was drawn to her, and she wasn’t even native to Rune’s world. She would hate to go about walking around the streets of Millenium City and suddenly have a bunch of people pointing at her. ❝Maybe I’ll tell you how I acquired that signature look after we’re done with this.❞
Her quip was only half-hearted as it seemed that not everybody was easily amused by such trivial matters. It must’ve got old for some people which she was quite grateful for. Her focus returned to Gabe who gave her a briefing of the suit’s properties. Again, she was grateful that he took the liberties to ensure that she was properly equipped and guarded against whatever she might face.
❝Thanks, Gabe. Whatever’s down there, we can’t really do anything but being on our toes. I’ll admit, it sounds like it’s gonna be a lot of trouble…❞
"Aint nothing Lupercal Squad can’t handle." Philip and Jared clanged their armored forearms against one another.
"You might want to get suited up. These two are liable to leave you in the dust." Gabe gestured Roxy over to the body glove. "A screen will come up like it did for Larice. You can store your belongings in the locker, and I’ll have them stored until you return."
The seams were easy to see, where the screens would rotate into place, forming a cylinder for her to change in. The ceiling above had a spider like machine built in, which clutched plates and held tools to finish the armor setup. The whole thing was a bit reminiscent of Iron Man.
(One more day. Then a weekend of pool and drinking, then moving. Weeeee.)
Put an assumption in my ask. I’ll confirm or dispute it. I’m not gonna be mean or anything, I’m just very interested.
Fusion is the energy that powers our Sun and other stars. It has been a goal of scientists around the world to harness this process by which the stars “burn” hydrogen into helium (i.e. nuclear fusion) for energy production on Earth since it was discovered in the 1940′s.
Nuclear fusion is the process by which light nuclei fuse together to create a single, heavier nucleus and release energy. Given the correct conditions (such as those found in plasma), nuclei of light elements can smash into each other with enough energy to undergo fusion. The “easiest” (most energetically favorable) fusion reaction occurs between the hydrogen isotopes deuterium and tritium. When the nucleus of a deuterium atom crashes into the nucleus of a tritium atom with sufficient energy, a fusion reaction occurs and a huge amount of energy is released, 17.6 million electron volts to be exact.
Why fusion? To put this in terms of energy that we all experience; fusion generates more energy per reaction than any other energy source. A single gram of deuterium/tritium fusion fuel can generate 350 million kJ of energy, nearly 10 million times more energy than from the same amount of fossil fuel!
Fusion power has the potential to provide sufficient energy to satisfy mounting demand, and to do so sustainably, with a relatively small impact on the environment. Nuclear fusion has many potential attractions. Firstly, its hydrogen isotope fuels are relatively abundant – one of the necessary isotopes, deuterium, can be extracted from seawater, while the other fuel, tritium, would be bred from a lithium blanket using neutrons produced in the fusion reaction itself. Furthermore, a fusion reactor would produce virtually no CO2 or atmospheric pollutants, and its other radioactive waste products would be very short-lived compared to those produced by conventional nuclear reactors.
Fusion reactions require so much energy that they must occur with the hydrogen isotopes in this plasma state. Plasma makes up all of the stars, and is the most common form of matter in the visible universe. Since plasmas are made of charged particles every particle can interact with every other particle, even over very long distances. The fact that 99% of the universe is made of plasmas makes studying them very important if we are to understand how the universe works.
How do we create fusion in a laboratory? This is where tokamaks come in. In order for nuclear fusion to occur, the nuclei inside of the plasma must first be extremely hot, like in a star. Unfortunately, no material on Earth can withstand these temperatures so in order to contain a plasma with such high temperatures, we have to be creative. One clever solution is to create a magnetic “bottle” using large magnet coils to capture the plasma and suspend it away from the container’s surfaces. The plasma follows along the magnetic field, suspended away from the walls. This complex combination of magnets used to confine the plasma and the chamber where the plasma is held is known as a tokamak. Tokamaks have a toroidal shape (i.e. they are shaped like a donut) so they have no open ends for plasma to escape. Tokamaks, like the ASDEX Upgrade (pictured above), create and contain the hottest materials in the solar system. The aim of ASDEX Upgrade, the “Axially Symmetric Divertor Experiment”, is to prepare the physics base for ITER.
ITER (International Thermonuclear Experimental Reactor and Latin for “the way” or “the road”) is an international nuclear fusion research and engineering project, which is currently building the world’s largest experimental tokamak nuclear fusion reactor. The ITER project aims to make the long-awaited transition from experimental studies of plasma physics to full-scale electricity-producing fusion power plants.
RYAN LANG bot (via RYAN LANG PORTFOLIO: Personal Work)