Ultraviolet
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Ultraviolet Ray Levels Surge Across Kerala, Orange Alert Issued In 6 Districts
Thiruvananthapuram April 16 (IANS) Ultraviolet (UV) radiation levels have risen sharply across Kerala, prompting the Kerala State Disaster Management Authority (KSDMA) to issue an orange alert in six districts and caution the public against prolonged
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NASA’s Carruthers Observatory Begins Mission to Study Earth’s Hydrogen Halo
NASA’s Carruthers Observatory has begun its two-year science mission to study Earth’s hydrogen-rich exosphere from a halo orbit at Sun–Earth L1. Equipped with ultraviolet cameras, the small satellite will continuously image the faint geocorona, tracking how solar storms and fast solar wind streams cause the upper atmosphere to expand, contrac...
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Hubble Spots White Dwarf Devouring Icy Pluto-Like Planet 260 Light-Years Away
Using Hubble’s ultraviolet spectrograph, scientists detected carbon, nitrogen, sulphur, and abundant oxygen falling onto a white dwarf 260 light-years away, evidence of an icy planetesimal being torn apart. The find shows volatile worlds can persist into a star’s final stages, offering a preview of the Sun’s distant fate.
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NASA Prepares 2025 Carruthers Mission to Explore Earth’s Hidden Hydrogen Halo
NASA’s Carruthers Geocorona Observatory, launching in 2025, will capture ultraviolet light from hydrogen atoms to map Earth’s faint geocorona. Operating a million miles sunward, it will study how solar activity drives atmospheric loss, improves satellite protection, and reveals clues to planetary habitability, providing critical insight for fut...
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Is Mars Really Red? A Physicist Explains the Science Behind Its Colour and More
A physicist explains the science behind Mars’s red appearance, linking its hue to iron oxide or rust. While known as the Red Planet, rover images and telescope data show varied colors, from tan to white ice caps. Observations in ultraviolet and infrared light reveal deeper insights into Mars’s atmosphere, surface, and seasonal changes, enrichin...
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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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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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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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NASA Shares Stunning Ultraviolet Images Of Mars Captured By Maven Spacecraft
The scientists were able to gain better insight into the red planet's atmosphere by viewing it in ultraviolet wavelengths.
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Woman Used Sunscreen On Her Face But Avoided Neck. Photo Shocks Internet
The internet has been shocked by a photo that provides evidence of the value of UV protection. The photo was published on Twitter and received thousands of likes and retweets.
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Lucknow Metro Restarts Tomorrow, Ultraviolet Technology To Sanitise Tokens
With Lucknow Metro set to resume operations from Monday, it will become the first metro service in India to use ultraviolet (UV) technology for token sanitisation for passenger safety, the organisation said in a statement.
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Indian Satellite Detects UV Light From Galaxy 9 Billion Light Years Away
AstroSat, India's first multi-wavelength satellite, has detected an extreme ultraviolet (UV) light from a galaxy which is 9.3 billion light-years away from Earth, the Inter-University Centre for Astronomy and Astrophysics (IUCAA) said on Monday.
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Samsung Exynos 9825 SoC Unveiled: First 7nm Mobile Chip Made Using EUV Technology
Samsung Exynos 9825 SoC is official. Announced hours before Samsung Galaxy Note 10’s launch event, the new chip is expected to be part of the Samsung’s new Galaxy Note lineup.
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New ‘Smallest’, Wearable, Battery-Free Device Can Warn People of UV Overexposure
Smaller than an M&M (colourful button-shaped chocolates) and thinner than a credit card, the device can optimise treatment of neonatal jaundice, skin diseases, seasonal affective disorder and reduce risk of sunburns and skin cancer.
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Ultraviolet Light May Be Key To Finding Alien Life: Study
Ultraviolet light may have played a critical role in the emergence of life on Earth and could be a key to finding life elsewhere in the universe, a study led by an Indian-origin scientist at Harvard suggests.
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Ultraviolet Ray Levels Surge Across Kerala, Orange Alert Issued In 6 Districts
Thiruvananthapuram April 16 (IANS) Ultraviolet (UV) radiation levels have risen sharply across Kerala, prompting the Kerala State Disaster Management Authority (KSDMA) to issue an orange alert in six districts and caution the public against prolonged
-
NASA’s Carruthers Observatory Begins Mission to Study Earth’s Hydrogen Halo
NASA’s Carruthers Observatory has begun its two-year science mission to study Earth’s hydrogen-rich exosphere from a halo orbit at Sun–Earth L1. Equipped with ultraviolet cameras, the small satellite will continuously image the faint geocorona, tracking how solar storms and fast solar wind streams cause the upper atmosphere to expand, contrac...
-
Hubble Spots White Dwarf Devouring Icy Pluto-Like Planet 260 Light-Years Away
Using Hubble’s ultraviolet spectrograph, scientists detected carbon, nitrogen, sulphur, and abundant oxygen falling onto a white dwarf 260 light-years away, evidence of an icy planetesimal being torn apart. The find shows volatile worlds can persist into a star’s final stages, offering a preview of the Sun’s distant fate.
-
NASA Prepares 2025 Carruthers Mission to Explore Earth’s Hidden Hydrogen Halo
NASA’s Carruthers Geocorona Observatory, launching in 2025, will capture ultraviolet light from hydrogen atoms to map Earth’s faint geocorona. Operating a million miles sunward, it will study how solar activity drives atmospheric loss, improves satellite protection, and reveals clues to planetary habitability, providing critical insight for fut...
-
Is Mars Really Red? A Physicist Explains the Science Behind Its Colour and More
A physicist explains the science behind Mars’s red appearance, linking its hue to iron oxide or rust. While known as the Red Planet, rover images and telescope data show varied colors, from tan to white ice caps. Observations in ultraviolet and infrared light reveal deeper insights into Mars’s atmosphere, surface, and seasonal changes, enrichin...
-
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...
-
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...
-
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.
-
NASA Shares Stunning Ultraviolet Images Of Mars Captured By Maven Spacecraft
The scientists were able to gain better insight into the red planet's atmosphere by viewing it in ultraviolet wavelengths.
-
Woman Used Sunscreen On Her Face But Avoided Neck. Photo Shocks Internet
The internet has been shocked by a photo that provides evidence of the value of UV protection. The photo was published on Twitter and received thousands of likes and retweets.
-
Lucknow Metro Restarts Tomorrow, Ultraviolet Technology To Sanitise Tokens
With Lucknow Metro set to resume operations from Monday, it will become the first metro service in India to use ultraviolet (UV) technology for token sanitisation for passenger safety, the organisation said in a statement.
-
Indian Satellite Detects UV Light From Galaxy 9 Billion Light Years Away
AstroSat, India's first multi-wavelength satellite, has detected an extreme ultraviolet (UV) light from a galaxy which is 9.3 billion light-years away from Earth, the Inter-University Centre for Astronomy and Astrophysics (IUCAA) said on Monday.
-
Samsung Exynos 9825 SoC Unveiled: First 7nm Mobile Chip Made Using EUV Technology
Samsung Exynos 9825 SoC is official. Announced hours before Samsung Galaxy Note 10’s launch event, the new chip is expected to be part of the Samsung’s new Galaxy Note lineup.
-
New ‘Smallest’, Wearable, Battery-Free Device Can Warn People of UV Overexposure
Smaller than an M&M (colourful button-shaped chocolates) and thinner than a credit card, the device can optimise treatment of neonatal jaundice, skin diseases, seasonal affective disorder and reduce risk of sunburns and skin cancer.
-
Ultraviolet Light May Be Key To Finding Alien Life: Study
Ultraviolet light may have played a critical role in the emergence of life on Earth and could be a key to finding life elsewhere in the universe, a study led by an Indian-origin scientist at Harvard suggests.
