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Showing posts with the label Astronomy & Space Science

THE JAMES WEBB SPACE TELESCOPE REVEALS FOMALHAUT'S DISK IN UNPRECEDENTED DETAIL

    From- Sky & Telescope,   By - Kit Gilchrist,  Edited by - Amal Udawatta, This image of the dusty debris disk surrounding the young star Fomalhaut is from JWST’s Mid-Infrared Instrument. It reveals an inner belt, akin to the solar system's asteroid belt but dustier and more extended; an intermediate belt; and a previously imaged outer belt that's analogous to our Kuiper Belt. The inner two belts had never been imaged before. NASA / ESA / CSA / A. Pagan (STScI) / A. Gáspár (University of Arizona) Continuing its run of ground-breaking discoveries, the James Webb Space Telescope has snapped the clearest images yet of the dusty disk around the young star Fomalhaut. Fomalhaut , a bright, young star 25 light-years away in the constellation Piscis Austrinus, illuminates a disk of planet-forming debris. Such debris disks contain clues about exoplanets and even smaller bodies that would otherwise remain hidden. András Gáspár (University of Arizona) and his team present in  Nature

Zero-G announces plans for once-in-a-lifetime zero gravity musical concerts

           From- Space.Com           By - Jeff Spry           Edited by -Amal Udawatta Zero-G will soon offer weightless private concerts aboard their specially outfitted aircraft.   (Image credit: Zero-G) The Florida-based firm will offer these unique reduced gravity flights starting this year. Tired of the same old birthday parties, anniversaries and weddings at theme parks, tropical resorts, aboard cruise ships or in gourmet restaurants?  Well, those adventurous souls with deep pockets and burgeoning bank accounts might consider something far more exotic now that Zero-G, the  zero gravity space tourism company  announced their intent to start offering private concerts aboard their specially outfitted aircraft. Zero-G Corporation  is a private space entertainment and tourism enterprise founded in 1993 and based in Exploration Park, Florida. They’ve been offering microgravity flights aboard  G-Force One , their modified Boeing 727-200, since 2004 and have hosted thousands from Martha

THE FIRST BLACK HOLE IMAGE, TAKE TWO

    From - Sky & Telescope,  By -Camille  M. Carlisle  Edited by - Amal Udawatta, The original image from the Event Horizon Telescope collaboration of the shadow of the black hole M87*  (left) , compared with a new version generated by the PRIMO algorithm  (right) . The tail at the bottom might or might not be a real feature, as it changes quite a bit depending on the analysis. It might be matter swirling around the black hole and falling in. Future work could pin down these kinds of structures and use them to learn more about the material accreting onto the black hole. L. Medeiros (Institute for Advanced Study), D. Psaltis (Georgia Tech), T. Lauer (NSF / NOIRLab), and F. Ozel (Georgia Tech) These two images might look like different things: one a fat, blurry orange doughnut, the other the sinuous noose on the end of a lariat. But they’re two views of the same black hole. This black hole, the leviathan dwelling in the heart of the elliptical galaxy M87, rocketed to worldwide fame i

JAMES WEBB SPACE TELESCOPE CAPTURES ANOTHER RINGED PLANET

  From - Sky & Telescope, By - Monica Young, Edited by - Amal Udawatta,    This annotated, zoomed-in image of Uranus, captured by Webb’s Near-Infrared Camera (NIRCam) on 6 February 2023, reveals stunning views of the planet’s rings, as well as clouds and the polar cap. NASA / ESA / CSA / STScI / J. DePasquale (STScI) Webb has returned an image of ringed Uranus, currently experiencing the dog days of northern hemisphere summer The James Webb Space Telescope is continuing its portfolio of the outer solar system, this time returning an image of ringed Uranus. The tipped-over ice giant is currently facing its northern pole straight toward the Sun. Imaged previously by Voyager 2 (from a distance of only 50,640 miles, or 81,500 km) and by the adaptive-optics system on the Keck Observatory in Hawai'i, the planet revealed new details to Webb's sensitive instruments over an exposure time of just 12 minutes. The image shown here is taken at two infrared wavelengths centered on 1.4 an

MYSTERY BURSTS GIVE ASTRONOMERS A VIEW INTO GALAXY HALOS

From - Sky & Telescope, By- Govert Schilling, Edited by - Amal Udawatta,           An illustration of a radio signal from a fast radio burst as it moves toward telescopes on Earth.          J. Josephides / Swinburne University of Technology, Australia, with minor modifications by the Dunlap           Institute Flashes of radio waves — whose exact sources are still a bit of a mystery — are helping astronomers learn about the hot gas that surrounds the Milky Way Nobody knows the true nature of  fast radio bursts  (FRBs). Nevertheless, these ultra-short flashes of radio waves are starting to shed light on the structure of galaxies and the evolution of the universe. As the bursts traverse deep space, astronomers learn about the cosmic distribution of tenuous  ionized gas  — a plasma consisting of atomic nuclei and free electrons — that is almost impossible to observe directly. “Astronomers love a good mystery — what are FRBs? — but the wider impact of FRBs on astrophysics will definite

OneWeb launch completes space internet project

IMAGE SOURCE, ISRO Image caption, The network-completing satellites rode India's biggest rocket to orbit By Jonathan Amos BBC Science Correspondent Edited by Amal Udawatta, London-based company One Web has launched the final set of satellites it needs to deliver a broadband internet connection anywhere on Earth. The 36 spacecraft went up on an Indian LVM3 rocket from the Sriharikota spaceport in Andhra Pradesh. Their deployment 450km above the planet takes OneWeb's total in-orbit constellation to 618. It's less than three years ago that the UK government took the decision to buy OneWeb out of bankruptcy. At the time, it was seen as controversial; arguments raged about whether it was a sound use of taxpayer money. But since the purchase, OneWeb has managed to attract significant additional investment, and is even now planning a next generation of satellites. "This is the most significant milestone in the history of OneWeb, as we reach the satellites needed for global co