• 44 Hidden Stars Revealed: Gravitational Lensing Unlocks the Secrets of the Dragon Arc

    Updated: 2025-01-15 00:51:01
    : Close Menu Facebook X Twitter Instagram Biology Chemistry Earth Health Physics Science Space Technology Facebook X Twitter Pinterest YouTube RSS Home Space 44 Hidden Stars Revealed : Gravitational Lensing Unlocks the Secrets of the Dragon Arc Space 44 Hidden Stars Revealed : Gravitational Lensing Unlocks the Secrets of the Dragon Arc By Center for Astrophysics Harvard Smithsonian January 14, 2025 1 Comment 7 Mins Read Facebook Twitter Pinterest Telegram LinkedIn Tumblr WhatsApp Email Share Facebook Twitter LinkedIn Pinterest Telegram Email Abell 370, a galaxy cluster located nearly 4 billion light-years away from Earth features several arcs of light , including the Dragon Arc lower left of center These arcs are caused by gravitational lensing : Light from distant galaxies far behind the

  • Hubble reveals surprising spiral shape of galaxy hosting young jet

    Updated: 2025-01-13 21:11:27
    The night sky has always played a crucial role in navigation, from early ocean crossings to modern GPS. Besides stars, the United States Navy uses quasars as beacons. Quasars are distant galaxies with supermassive black holes, surrounded by brilliantly hot disks of swirling gas that can blast off jets of material. Following up on the groundbreaking 2020 discovery of newborn jets in a number of quasars, aspiring naval officer Olivia Achenbach of the United States Naval Academy has used NASA's Hubble Space Telescope to reveal surprising properties of one of them, quasar J0742+2704.

  • NASA's Hubble tracks down a 'blue lurker' among stars

    Updated: 2025-01-13 21:11:24
    The name 'blue lurker' might sound like a villainous character from a superhero movie. But it is a rare class of star that NASA's Hubble Space Telescope explored by looking deeply into the open star cluster M67, roughly 2,800 light-years away.

  • New study unveils breakthrough in understanding cosmic particle accelerators

    Updated: 2025-01-13 18:44:29
    Scientists have come a step closer to understanding how collisionless shock waves -- found throughout the universe -- are able to accelerate particles to extreme speeds.

  • X-ray flashes from a nearby supermassive black hole accelerate mysteriously

    Updated: 2025-01-13 18:41:48
    Astronomers observed flashes of X-rays coming from a supermassive black hole at a steadily increasing clip. The source could be the core of a dead star that's teetering at the black hole's edge.

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