Astronomy Picture of the Day (APOD) Black Hole Accreting with Jet (APOD: 2024 May 07) Illustration Credit: NASA, Swift, Aurore Simonnet (Sonoma State U.) https://lnkd.in/dJUq2PsS Explanation: What happens when a black hole devours a star? Many details remain unknown, but observations are providing new clues. In 2014, a powerful explosion was recorded by the ground-based robotic telescopes of the All Sky Automated Survey for SuperNovae (Project ASAS-SN), with followed-up observations by instruments including NASA's Earth-orbiting Swift satellite. Computer modeling of these emissions fit a star being ripped apart by a distant supermassive black hole. The results of such a collision are portrayed in the featured artistic illustration. The black hole itself is depicted as a tiny black dot in the center. As matter falls toward the hole, it collides with other matter and heats up. Surrounding the black hole is an accretion disk of hot matter that used to be the star, with a jet emanating from the black hole's spin axis. https://www.nasa.gov/ https://lnkd.in/d-GHUQnp https://lnkd.in/dqS-ZGea https://lnkd.in/d4ngM-Dd #APOD
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Scientists have clarified the size of Pluto NASA's New Horizons mission was able to answer one of the main questions about Pluto, namely its size. A team of scientists has determined the exact size of the dwarf planet: its diameter is 2,370 kilometers; this is slightly more than previously thought. Thus, Pluto is the largest object beyond the orbit of Neptune. "The debate about Pluto's size has been ongoing since its discovery in 1930, so we're pleased to be able to finally put the question to rest," said Bill McKinnon, a scientist at the University of Washington. The updated size of Pluto suggests that its density is somewhat less than previously thought - apparently, there is more water ice in its interior. Additionally, Pluto's lower atmosphere (troposphere) is thinner than previous estimates. Determining Pluto's size has been difficult due to its atmosphere. At the same time, its satellite Charon has no atmosphere, which made it possible to determine its size using earthly telescopes. The New Horizons probe confirmed the accuracy of these measurements - Charon's diameter is 1208 kilometers. The spacecraft also studied Pluto's two small moons, Nix and Hydra. They were discovered by Hubble in 2005, but even to the space telescope, the satellites appeared to be just faint points. Now scientists have been able to determine their size using the LORRI instrument located on the New Horizons probe. The diameter of Nyx is estimated at 35 kilometers, and Hydra is about 45 kilometers. As for Pluto's two smallest moons, Kerberos and Styx, their size is still a mystery. They are so small that scientists will be able to calculate their diameter only after the probe has flown past Pluto and taken photographs with maximum resolution. If you've read the article this far please like and subscribe - it really helps the channel. Open the link to find thousands of interesting articles: https://lnkd.in/dYdAdmgE #nikolaysgeneticslessons
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The Serpens Nebula: Objects Identified | James Webb Space Telescope FriendsofNASA.org: For the first time, a phenomenon astronomers have long hoped to image directly has been captured by the NASA/European Space Agency/Canadian Space Agency James Webb Space Telescope’s Near-InfraRed Camera (NIRCam). In this detailed image of the Serpens Nebula, the discovery lies in the northern area of this young, nearby star-forming region. The astronomers found an intriguing group of protostellar outflows, formed when jets of gas spewing from newborn stars collide with nearby gas and dust at high speeds. Typically these objects have a variety of orientations within one region. Here, however, they are all slanted in the same direction, to the same degree, like sleet pouring down during a storm. The discovery of these aligned objects, made possible only by Webb’s exquisite spatial resolution and sensitivity at near-infrared wavelengths, is providing information about the fundamentals of how stars are born. This video showcases the new Webb Serpens Nebula image, with notable features and objects highlighted. Credit: NASA, ESA, CSA, STScI, K. Pontoppidan (NASA’s Jet Propulsion Laboratory), J. Green (Space Telescope Science Institute), N. Bartmann (ESA/Webb) Duration: 1 minute, 10 seconds Release Date: June 20, 2024 ESA Hubble and Webb Space Telescopes NASA Goddard Space Flight Center Canadian Space Agency | Agence spatiale canadienne Space Telescope Science Institute #NASA #Astronomy #Space #Science #Nebulae #Nebula #SerpensNebula #Stars #Jets #ProtostellarOutflows #Serpens #Constellation #Universe #JamesWebb #SpaceTelescope #JWST #Infrared #UnfoldTheUniverse #ESA #CSA #GSFC #STSc #UnitedStates #STEM #Education #HD #Video
The Serpens Nebula: Objects Identified | James Webb Space Telescope
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Chief Editor, Executive Director & Founder of Friends of NASA | Independent Analyst & Digital Media Specialist
Sun Releases Strong X3.4 Solar Flare | NASA SDO FriendsofNASA.org: The Sun emitted a strong X3.4 solar flare from active region 3664, peaking at 4:37 a.m. ET on May 15, 2024. NASA’s Solar Dynamics Observatory captured an image of the event. It observes the sun continuously. Due to its location on the Sun's Western limb, any coronal mass ejections (CMEs) associated with this flare will likely not have any geomagnetic impacts on Earth. Image Description: The Sun, shown in teal, against a black background. Swirling across the Sun are many bright teal active regions. On the right, a bright flash of teal and white light, forming an "X" shape, can be seen against the Sun and the black background. The image shows a subset of extreme ultraviolet light that highlights the extremely hot material in flares. It is colorized in teal. Solar flares are powerful bursts of energy. Flares and solar eruptions can impact radio communications, electric power grids, navigation signals, and pose risks to spacecraft and astronauts. This flare is classified as an X3.4 flare. X-class denotes the most intense flares, while the number provides more information about its strength. To see how such space weather may affect Earth, please visit NOAA’s Space Weather Prediction Center https://spaceweather.gov/, the U.S. government’s official source for space weather forecasts, watches, warnings, and alerts. NASA works as a research arm of the nation’s space weather effort. NASA observes the Sun and our space environment constantly with a fleet of spacecraft that study everything from the Sun’s activity to the solar atmosphere, and to the particles and magnetic fields in the space surrounding Earth. Image Credit: NASA's Goddard Space Flight Center (GSFC) Image Date: May 15, 2024 #NASA #Astronomy #Space #Science #Earth #Moon #SpaceWeather #Sun #Star #Solar #SolarFlares #Ultraviolet #Plasma #MagneticField #Heliophysics #Physics #Spacecraft #Satellites #ElectricalGrids #SDO #SolarSystem #NASAGoddard #GSFC #UnitedStates #Animation #STEM #Education
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Data peeps, take a break from the numbers and look up! This summer brings a rare opportunity to witness the "Devil Comet," C/2023 E3 (ZTF), making its first trip near Earth in billions of years! https://lnkd.in/g9bbQ5Jq The blog post from NASA's "Watch the Skies" has all the details: Visibility: Potentially naked-eye viewable in late July under dark skies, with binoculars or telescopes offering even better looks. Location: The post provides guidance on using star charts to pinpoint the comet's nightly position. Science: It also explains the greenish glow from the comet's gases and assures there's no threat to Earth. This celestial visitor is a chance to merge our love of data with the awe-inspiring universe. Let's use our analytical skills to track the comet's path and share our observations! #SpaceData #CitizenScience #SummerScience
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Chief Editor, Executive Director & Founder of Friends of NASA | Independent Analyst & Digital Media Specialist
Panning over Globular Cluster NGC 6397 | Euclid Space Telescope FriendsofNASA.org: The European Space Agency's new Euclid space telescope captured this sparkly image of a globular cluster called NGC 6397. Globular clusters are collections of hundreds of thousands of stars held together by gravity. Located about 7,800 light-years from Earth, NGC 6397 is the second-closest globular cluster to us. Together with other globular clusters it orbits in the disc of the Milky Way, where the majority of stars are located. Globular clusters are among the oldest objects in the Universe. This is why they contain many clues about the history and evolution of their host galaxies, like this one for the Milky Way. The challenge is that it is typically difficult to observe an entire globular cluster in just one sitting. Their centers contain large volumes of stars, so many that the brightest ‘drown out’ the fainter ones. Their outer regions extend a long way out and contain mostly low-mass, faint stars. It is the faint stars that can tell us about previous interactions with the Milky Way. Image Description: This square astronomical image is speckled with hundreds of thousands of stars visible across the black expanse of space. The stars vary in size and color, from blue to white to yellow/red. Blue stars are younger and red stars are older. More stars are located at the center of the image, where they are bound together by gravity into a spheroid conglomeration—also called a globular cluster. Several stars are a bit larger than the rest, with six diffraction spikes. Video Credit: ESA / Euclid /Euclid Consortium / NASA Image Processing: J.-C. Cuillandre (CEA Paris-Saclay), G. Anselmi Duration: 38 seconds Release Date: Nov. 7, 2023 #NASA #ESA #ESAEuclid #Astronomy #Space #Science #Stars #StarClusters #GlobularStarClusters #NGC6397 #Ara #Constellation #Cosmos #Universe #EST #EuclidSpaceTelescope #Infrared #SpaceTelescope #Europe #STEM #Education #HD #Video
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Astronomy Picture of the Day (APOD) Unusual Nebula Pa 30 (APOD: 2024 Apr 03) Image Credit: NASA, ESA, USAF, NSF; Processing: G. Ferrand (U. Manitoba), J. English (U. Manitoba), R. A. Fesen (Dartmouth), C. Treyturik (U. Manitoba); Text: G. Ferrand & J. English https://lnkd.in/ehpxjbMk Explanation: What created this unusual celestial firework? The nebula, dubbed Pa 30, appears in the same sky direction now as a bright "guest star" did in the year 1181. Although Pa 30's filaments look similar to that created by a nova (for example GK Per), and a planetary nebula (for example NGC 6751), some astronomers now propose that it was created by a rare type of supernova: a thermonuclear Type Iax, and so is (also) named SN 1181. In this model, the supernova was not the result of the detonation of a single star, but rather a blast that occurred when two white dwarf stars spiraled together and merged. The blue dot in the center is hypothesized to be a zombie star, the remnant white dwarf that somehow survived this supernova-level explosion. The featured image combines images and data obtained with infrared (WISE), visible (MDM, Pan-STARRS), and X-ray (Chandra, XMM) telescopes. Future observations and analyses may tell us more. https://www.nasa.gov/ https://www.esa.int https://www.af.mil/ https://www.nsf.gov/ https://lnkd.in/eYXwxpPZ https://lnkd.in/eyeBabSz https://lnkd.in/eJKqisug https://lnkd.in/e_9Vc7b4 https://lnkd.in/ezcuCuwa #APOD
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Chief Editor, Executive Director & Founder of Friends of NASA | Independent Analyst & Digital Media Specialist
Sun Releases 2 Strong Flares: May 10-11, 2024 | NASA Solar Dynamics Observatory FriendsofNASA.org: The Sun emitted two strong solar flares, peaking at 9:23 p.m. ET on May 10, 2024, and 7:44 a.m. ET on May 11, 2024. NASA’s Solar Dynamics Observatory (SDO) captured images of the events. It watches the Sun constantly. The flares are classified as X5.8 and X1.5-class flares, respectively. X-class denotes the most intense flares, while the number provides more information about its strength. Image Description: A side-by-side image of two solar flares that erupted on May 10-11, 2024. The images show close-ups of one edge of the Sun, with bright flashes (the flare) towards the center of the image. The images show a subset of extreme ultraviolet light that highlight the extremely hot material in flares created from a mixture of SDO’s AIA 193, 171 and 131 channels. Solar flares are powerful bursts of energy. Flares and solar eruptions can impact radio communications, electric power grids, navigation signals, and pose risks to spacecraft and astronauts. To see how such space weather may affect Earth, please visit NOAA’s Space Weather Prediction Center https://spaceweather.gov/, the U.S. government’s official source for space weather forecasts, watches, warnings, and alerts. NASA works as a research arm of the nation’s space weather effort. NASA observes the Sun and our space environment constantly with a fleet of spacecraft that study everything from the Sun’s activity to the solar atmosphere, and to the particles and magnetic fields in the space surrounding Earth. Image Credit: NASA's Goddard Space Flight Center (GSFC) Release Date: May 11, 2024 #NASA #Astronomy #Space #Science #Earth #Moon #SpaceWeather #Sun #Star #Solar #SolarFlares #Ultraviolet #Plasma #MagneticField #Astrophysics #Heliophysics #Physics #Spacecraft #Satellite #SDO #SolarSystem #NASAGoddard #GSFC #UnitedStates #STEM #Education
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Astronomy Picture of the Day (APOD) [449120107_922931273203400_2090113225756346066_n.jpg] Protostellar Outflows in Serpens (APOD: 2024 Jun 27) Image Credit: NASA, ESA, CSA, STScI, Klaus Pontoppidan (NASA-JPL), Joel Green (STScI) https://lnkd.in/dN_9NKEu Explanation: Jets of material blasting from newborn stars, are captured in this James Webb Space Telescope close-up of the Serpens Nebula. The powerful protostellar outflows are bipolar, twin jets spewing in opposite directions. Their directions are perpendicular to accretion disks formed around the spinning, collapsing stellar infants. In the NIRcam image, the reddish color represents emission from molecular hydrogen and carbon monoxide produced as the jets collide with the surrounding gas and dust. The sharp image shows for the first time that individual outflows detected in the Serpens Nebula are generally aligned along the same direction. That result was expected, but has only now come into clear view with Webb's detailed exploration of the active young star-forming region. Brighter foreground stars exhibit Webb's characteristic diffraction spikes. At the Serpens Nebula estimated distance of 1,300 light-years, this cosmic close-up frame is about 1 light-year across. https://www.nasa.gov https://www.esa.int/ https://lnkd.in/di8ii3yi https://www.stsci.edu/ #APOD
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Astronomy Picture of the Day (APOD) A Black Hole Disrupts a Passing Star (APOD: 2024 May 05) Illustration Credit: NASA, JPL-Caltech https://lnkd.in/dY2M6Kxd Explanation: What happens to a star that goes near a black hole? If the star directly impacts a massive black hole, then the star falls in completely -- and everything vanishes. More likely, though, the star goes close enough to have the black hole's gravity pull away its outer layers, or disrupt, the star. Then, most of the star's gas does not fall into the black hole. These stellar tidal disruption events can be as bright as a supernova, and an increasing amount of them are being discovered by automated sky surveys. In the featured artist's illustration, a star has just passed a massive black hole and sheds gas that continues to orbit. The inner edge of a disk of gas and dust surrounding the black hole is heated by the disruption event and may glow long after the star is gone. https://www.nasa.gov https://www.jpl.nasa.gov/ #APOD
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Every 12 seconds 36,000 km above the earth an orbital telescope shoots the Sun in ultraviolet. Seems almost magical we can reimagine the data in human color space. Anyone can do this with just a few lines of code: High quality video, code & article: 🔴 https://wolfr.am/1jPqIX7Ef The Solar Dynamics Observatory (SDO) is a NASA mission launched on FEB 11, 2010. It is a sun-pointing spacecraft that allows nearly continuous observations of the Sun. The goals of the SDO are to explore Space Weather, which is the influence of solar activity on Earth. I picked 3 SDO cameras that shoot in Extreme Ultraviolet with close wavelengths and visualized those data in human LAB color space called. LAB space is designed to be more perceptually uniform, meaning that the numerical differences between values roughly correspond to the amount of change humans see between colors. #spacetravel #space #nasa #science #spaceexploration #universe #tech #technology #education #computation #programing #code #color #engineering #animation #video #Wolfram #Mathematica #innovation #design #discovery #exploration #orbit #knowledge #sun #solar #spacecraft #SpaceProbe #astro #astronomy #solar #mission #telescope #imaging #SDO #Earth #SpaceWeather #satellite #photography #imageprocessing #india #africa #china #indonesia #pakistan #turkey #asia #japan #Egypt
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