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Observatories Combine to Crack Open the Crab Nebula
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By NASA
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The guitar shape in the “Guitar Nebula” comes from bubbles blown by particles ejected from the pulsar through a steady wind as it moves through space. A movie of Chandra (red) data taken in 2000, 2006, 2012, and 2021 has been combined with a single image in optical light from Palomar. X-rays from Chandra show a filament of energetic matter and antimatter particles, about two light-years long, blasting away from the pulsar (seen as the bright white dot). The movie shows how this filament has changed over two decades. X-ray: NASA/CXC/Stanford Univ./M. de Vries et al.; Optical full field: Palomar Obs./Caltech & inset: NASA/ESA/STScI; Image Processing: NASA/CXC/SAO/L. Frattare) Normally found only in heavy metal bands or certain post-apocalyptic films, a “flame-throwing guitar” has now been spotted moving through space. Astronomers have captured movies of this extreme cosmic object using NASA’s Chandra X-ray Observatory and Hubble Space Telescope.
The new movie of Chandra (red) and Palomar (blue) data helps break down what is playing out in the Guitar Nebula. X-rays from Chandra show a filament of energetic matter and antimatter particles, about two light-years or 12 trillion miles long, blasting away from the pulsar (seen as the bright white dot connected to the filament).
Astronomers have nicknamed the structure connected to the pulsar PSR B2224+65 as the “Guitar Nebula” because of its distinct resemblance to the instrument in glowing hydrogen light. The guitar shape comes from bubbles blown by particles ejected from the pulsar through a steady wind. Because the pulsar is moving from the lower right to the upper left, most of the bubbles were created in the past as the pulsar moved through a medium with variations in density.
X-ray: NASA/CXC/Stanford Univ./M. de Vries et al.; Optical: (Hubble) NASA/ESA/STScI and (Palomar) Hale Telescope/Palomar/CalTech; Image Processing: NASA/CXC/SAO/L. Frattare At the tip of the guitar is the pulsar, a rapidly rotating neutron star left behind after the collapse of a massive star. As it hurtles through space it is pumping out a flame-like filament of particles and X-ray light that astronomers have captured with Chandra.
How does space produce something so bizarre? The combination of two extremes — fast rotation and high magnetic fields of pulsars — leads to particle acceleration and high-energy radiation that creates matter and antimatter particles, as electron and positron pairs. In this situation, the usual process of converting mass into energy, famously determined by Albert Einstein’s E = mc2 equation, is reversed. Here, energy is being converted into mass to produce the particles.
Particles spiraling along magnetic field lines around the pulsar create the X-rays that Chandra detects. As the pulsar and its surrounding nebula of energetic particles have flown through space, they have collided with denser regions of gas. This allows the most energetic particles to escape the confines of the Guitar Nebula and fly to the right of the pulsar, creating the filament of X-rays. When those particles escape, they spiral around and flow along magnetic field lines in the interstellar medium, that is, the space in between stars.
The new movie shows the pulsar and the filament flying towards the upper left of the image through Chandra data taken in 2000, 2006, 2012 and 2021. The movie has the same optical image in each frame, so it does not show changes in parts of the “guitar.” A separate movie obtained with data from NASA’s Hubble Space Telescope (obtained in 1994, 2001, 2006, and 2021) shows the motion of the pulsar and the smaller structures around it.
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Hubble Space Telescope data: 1994, 2001, 2006, and 2021.X-ray: NASA/CXC/Stanford Univ./M. de Vries et al.; Optical full field: Palomar Obs./Caltech & inset: NASA/ESA/STScI; Image Processing: NASA/CXC/SAO/L. Frattare) A study of this data has concluded that the variations that drive the formation of bubbles in the hydrogen nebula, which forms the outline of the guitar, also control changes in how many particles escape to the right of the pulsar, causing subtle brightening and fading of the X-ray filament, like a cosmic blow torch shooting from the tip of the guitar.
The structure of the filament teaches astronomers about how electrons and positrons travel through the interstellar medium. It also provides an example of how this process is injecting electrons and positrons into the interstellar medium.
A paper describing these results was published in The Astrophysical Journal and is available here.
NASA’s Marshall Space Flight Center manages the Chandra program. The Smithsonian Astrophysical Observatory’s Chandra X-ray Center controls science operations from Cambridge, Massachusetts, and flight operations from Burlington, Massachusetts.
Read more from NASA’s Chandra X-ray Observatory.
Learn more about the Chandra X-ray Observatory and its mission here:
https://www.nasa.gov/chandra
https://chandra.si.edu
Visual Description:
This release features two short videos and a labeled composite image, all featuring what can be described as a giant flame-throwing guitar floating in space.
In both the six second multiwavelength Guitar Nebula timelapse video and the composite image, the guitar shape appears at our lower left, with the neck of the instrument pointing toward our upper left. The guitar shape is ghostly and translucent, resembling a wispy cloud on a dark night. At the end of the neck, the guitar’s headstock comes to a sharp point that lands on a bright white dot. This dot is a pulsar, and the guitar shape is a hydrogen nebula. The nebula was formed when particles being ejected by the pulsar produced a cloud of bubbles. The bubbles were then blown into a curvy guitar shape by a steady wind. The guitar shape is undeniable, and is traced by a thin white line in the labeled composite image.
The pulsar, known as PSR B2224+65, has also released a long filament of energetic matter and antimatter particles approximately 12 trillion miles long. In both the composite image and the six second video, this energetic, X-ray blast shoots from the bright white dot at the tip of the guitar’s headstock, all the way out to our upper righthand corner. In the still image, the blast resembles a streak of red dots, most of which fall in a straight, densely packed line. The six second video features four separate images of the phenomenon, created with Chandra data gathered in 2000, 2006, 2012, and 2021. When shown in sequence, the density of the X-ray blast filament appears to fluctuate.
A 12 second video is also included in this release. It features four images that focus on the headstock of the guitar shape. These images were captured by the Hubble Space Telescope in 1994, 2001, 2006, and 2021. When played in sequence, the images show the headstock shape expanding. A study of this data has concluded that the variations that drive the formation of bubbles in the hydrogen nebula also control changes in the pulsar’s blast filament. Meaning the same phenomenon that created the cosmic guitar also created the cosmic blowtorch shooting from the headstock.
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By USH
While observing the Orion Nebula with his 12-inch Dobsonian telescope, a sky-watcher noticed an unusual flashing object. As stars appeared to drift due to Earth's rotation, this particular object while flashing approximately every 20 seconds clearly travels through deep space.
The observer wonders whether it might be a rotating satellite or not. However, this isn’t the first sighting of cigar-shaped UFOs or other mysterious objects traveling through space near the Orion Nebula, so it is quite possible that it could be an interstellar craft.
Over the years, I have shared several articles, complete with images and videos, documenting similar UFO sightings around the Orion Nebula. You can explore these under the tag: Orion Nebula.
Interestingly, these sightings have all occurred between November and February, suggesting there may be a seasonal pattern to these observations.
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By NASA
NASA/JPL-Caltech This 2013 image taken by NASA’s Wide-Field Infrared Survey Explorer, or WISE, captures a nebula that looks like a witch screaming. Perhaps that imagined scream is a creation spell, for the Witch Hat nebula’s billowy clouds are a star nursery. We can see these clouds thanks to massive stars lighting them up; dust in the cloud is being hit with starlight, causing it to glow with infrared light, which was picked up by WISE’s detectors.
WISE launched to near-Earth orbit on Dec. 14, 2009, and surveyed the full sky in four infrared wavelength bands until the frozen hydrogen cooling the telescope was depleted in September 2010. The spacecraft was placed into hibernation in February 2011, having completed its primary astrophysics mission.
In late 2013, the spacecraft was resurrected – no incantation needed – when NASA’s Planetary Science Division gave it a new mission and a new name: NEOWISE. The spacecraft began helping NASA identify and describe near-Earth objects (NEOs). NEOs are comets and asteroids that have been nudged into orbits that allow them to enter Earth’s neighborhood. NEOWISE was decommissioned Aug. 8, 2024, and placed into hibernation for the last time, ending its career as an active asteroid hunter.
Image credit: NASA/JPL-Caltech
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By NASA
NASA logo NASA has awarded $15.6 million in grant funding to 15 projects supporting the maintenance of open-source tools, frameworks, and libraries used by the NASA science community, for the benefit of all.
The agency’s Open-Source Tools, Frameworks, and Libraries awards provide support for the sustainable development of tools freely available to everyone and critical for the goals of the agency’s Science Mission Directorate.
“We received almost twice the number of proposals this year than we had in the previous call,” said Steve Crawford, program executive, Open Science implementation, Office of the Chief Science Data Officer, NASA Headquarters in Washington. “The NASA science community’s excitement for this program demonstrates the need for sustained support and maintenance of open-source software. These projects are integral to our missions, critical to our data infrastructure, underpin machine learning and data science tools, and are used by our researchers, every day, to advance science that protects our planet and broadens our understanding of the universe.”
This award program is one of several cross-divisional opportunities at NASA focused on advancing open science practices. The grants are funded by NASA’s Office of the Chief Science Data Officer through the agency’s Research Opportunities for Space and Earth Science. The solicitation sought proposals through two types of awards:
Foundational awards: cooperative agreements for up to five years for open-source tools, frameworks, and libraries that have a significant impact on two or more divisions of the Science Mission Directorate. Sustainment awards: grants or cooperative agreements of up to three years for open-source tools, frameworks, and libraries that have significant impact in one or more divisions of the Science Mission Directorate. 2024 awardees are:
Foundation awards:
NASA’s Ames Research Center, Silicon Valley, CaliforniaPrincipal investigator: Ross Beyer “Expanding and Maintaining the Ames Stereo Pipeline” Caltech, Pasadena, CaliforniaPrincipal investigator: Brigitta Sipocz “Enhancement of Infrastructure and Sustained Maintenance of Astroquery” Cornell University, Scarsdale, New YorkPrincipal investigator: Ramin Zabih “Modernize and Expand arXiv’s Essential Infrastructure” NASA’s Goddard Space Flight Center, Greenbelt, MarylandPrincipal investigator: D. Cooley “Enabling SMD Science Using the General Mission Analysis Tool” NumFOCUS, Austin, TexasPrincipal investigator: Thomas Caswell “Sustainment of Matplotlib and Cartopy” NumFOCUSPrincipal investigator: Erik Tollerud “Investing in the Astropy Project to Enable Research and Education in Astronomy” Sustainment awards:
NASA’s Jet Propulsion Laboratory, Southern CaliforniaPrincipal investigator: Cedric David “Sustain NASA’s River Software for the Satellite Data Deluge,” three-year award Pennsylvania State University, University ParkPrincipal investigator: David Radice “AthenaK: A Performance Portable Simulation Infrastructure for Computational Astrophysics,” three-year award United States Geological Survey, Reston, VirginiaPrincipal investigator: Trent Hare “Planetary Updates for QGIS,” one-year award NASA JPLPrincipal investigator: Michael Starch “How To F Prime: Empowering Science Missions Through Documentation and Examples,” three-year award NASA GoddardPrincipal investigator: Albert Shih “Enhancing Consistency and Discoverability Across the SunPy Ecosystem,” three-year award Triad National Security, LLC, Los Alamos, New MexicoPrincipal investigator: Julia Kelliher “Enhancing Analysis Capabilities of Biological Data With the NASA EDGE Bioinformatics Platform,” four-year award iSciences LLC, Burlington, VermontPrincipal investigator: Daniel Baston “Sustaining the Geospatial Data Abstraction Library,” three-year award University of Maryland, College Park,Principal investigator: C Max Stevens “Sustaining the Community Firn Model,” three-year award Quansight, LLC, Austin, TexasPrincipal investigator: Dharhas Pothina “Ensuring a Fast and Secure Core for Scientific Python – Security, Accessibility and Performance of NumPy, SciPy and scikit-learn; Going Beyond NumPy With Accelerator Support,” three-year award For information about open science at NASA, visit:
https://science.nasa.gov/open-science
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Alise Fisher
Headquarters, Washington
202-617-4977
alise.m.fisher@nasa.gov
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By European Space Agency
Video: 00:03:27 On Saturday 5 and Sunday 6 October 2024, the European Space Agency opened the doors to the European Space Research and Technology Centre, ESTEC, in the Netherlands, welcoming some 9000 visitors to its 13th annual Open Day. As in previous years, ESA’s largest establishment in Europe invited the public to meet space engineers, astronauts and to see actual space hardware. Attendees explored state-of-the-art facilities, interacted with ESA and NASA astronauts and discovered various job opportunities at ESA. There was also a full schedule of talks from Space Rocks, celebrating the art and culture of science and space.
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