Ultraviolet

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  NASA’s Hubble Observes Rare Blue Lurker Star with Unusual Evolution in M67 Cluster

  NASA’s Hubble Space Telescope has identified a rare stellar phenomenon called the “blue lurker” in the M67 star cluster. Located 2,800 light-years away, this star is part of a triple-star system and has an unusual evolutionary history. The blue lurker’s accelerated spin, taking just four days, contrasts with the typical rotation of Sun-like...

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  Hubble Captures NGC 5643’s Spiral Arms, Star Formation, and Hidden Black Hole

  The NASA/ESA Hubble Space Telescope has captured detailed images of the spiral galaxy NGC 5643, located 40 million light-years away. This grand design galaxy features striking spiral arms outlined by young blue stars and dust clouds, with star-forming regions visible as pinkish hues. Ultraviolet and X-ray studies have revealed an active galactic nu...

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  Pimple On Australian Woman's Forehead Turns Out To Be Cancer: "I Was Shocked"

  A small, red mark that appeared suddenly on her forehead was initially dismissed as a pimple caused by squeezing.

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  ISRO’s AstroSat Observes First-Ever Nuclear Explosion in Andromeda Galaxy

  Using the Ultraviolet Imaging Telescope (UVIT) aboard ISRO’s AstroSat, scientists have identified far-ultraviolet emissions from 42 novae in the Andromeda Galaxy. This marks the first detection of such emissions during their outbursts, offering new insights into the processes of stellar explosions. Four of these novae were observed in real-time a...

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  Astronomers Explore Moon as Vantage Point for Space Studies: Report

  A recent symposium at the Raman Research Institute (RRI) in Bengaluru brought together over 60 scientists and researchers to discuss the Moon’s role as a vantage point for advanced astronomical studies. Organised by RRI and the U.R. Rao Satellite Centre (URSC) of ISRO, the three-day event focused on leveraging the Moon’s unique environment for ...

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  Here's How Nuclear Clocks Could Redefine Time and Reshape Modern Technology

  Timekeeping is entering a new era with nuclear clocks, capable of achieving accuracy to the 19th decimal place. Current atomic clocks rely on caesium-133, but innovations with thorium-229’s nuclear transitions, excited by ultraviolet light, promise unprecedented precision. Scientists aim to redefine the second using elements like strontium by 203...

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  Jupiter’s Earth-Sized Storms Might Be Caused by Magnetic Tornadoes, Study Claims

  Magnetic tornadoes twisting down from Jupiter's ionosphere create massive, Earth-sized anticyclonic storms in the planet's atmosphere. These dark ovals, detectable only in ultraviolet light, form dense hazes of aerosols stirred by swirling magnetic vortices. This phenomenon, visible at Jupiter's poles, was unveiled through data from the Hubble Spac...

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  Hubble Telescope Finds Unexpectedly Hot Accretion Disk in FU Orionis

  Hubble Space Telescope’s recent observations of FU Orionis have revealed surprising new details about the star’s accretion disk. The study found that the disk’s inner edge reaches temperatures as high as 16,000K, nearly three times hotter than the Sun’s surface. This discovery challenges existing models of stellar accretion, which had predi...

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  Heart-Shaped Clams Channel Sunlight Using Fiber Optic-Like Structures, Says Study

  Heart cockles, small marine bivalves from the Indian and Pacific Oceans, exhibit a unique adaptation in their shells. These structures, resembling fibre-optic cables, channel sunlight to symbiotic algae living within, facilitating photosynthesis while filtering out harmful ultraviolet rays. The algae provide essential nutrients to the clams in retu...

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  NASA James Webb Space Telescope Unearths Oversupply of UV Light from Early Stars and Black Holes

  NASA’s James Webb Space Telescope (JWST) has revealed surprising new details about the universe's reionization process. The telescope has found an unexpected oversupply of ultraviolet (UV) light emitted by early stars and giant black holes, contradicting previous theories. This discovery suggests a more complex reionization process, potentially d...

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  Elon Musk's Starlink Satellites Could Deplete Earth's Ozone Layer, Study Warns

  The ozone layer in the Earth's atmosphere absorbs harmful ultraviolet radiation from the Sun, which can cause skin cancer on exposure and even disrupt crop yields and food production.

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  Antarctic Wildlife Is Being Sunburnt. Scientists Say It's A "Wake-Up Call"

  The ultraviolet radiation from the Sun increase the risk of skin cancer and cataracts in humans, but researchers do not yet know if the same is true for Antarctic mammals and birds.

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  NASA Shares Image Of "Fierce" Tarantula Nebula Taken By Hubble Telescope

  The Hubble telescope obtained data in ultraviolet light, which can only be viewed from space, as part of a comprehensive survey.

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  NASA's Hubble Shares Mesmerising Image Of Jupiter In Ultraviolet View

  NASA said that the storm to the naked eye appears deeper in the UV image as high-altitude haze particles absorb light at these wavelengths.

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  World Ozone Day 2023: Know This Year's Theme, History And Significance

  World Ozone Day 2023: The theme of World Ozone Day 2023 is ''Montreal Protocol: Fixing the Ozone Layer and Reducing Climate Change.''