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 Reveals How Blue Straggler Stars Stay Young in Ancient Clusters
Astronomers using the Hubble Space Telescope have uncovered new clues to the mystery of blue straggler stars—unusually hot, bright stars found in ancient globular clusters. By studying ultraviolet light from 48 clusters, scientists discovered that blue stragglers are more common in sparse clusters, supporting the idea that they form through binar...
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James Webb Space Telescope Finds Unexpected Ultraviolet Radiation Around Young Protostars
Astronomers using the James Webb Space Telescope have detected unexpected ultraviolet radiation around five young protostars in the Ophiuchus molecular cloud. Since infant stars are not expected to emit UV light, the finding challenges long-standing star-formation models. Researchers ruled out external illumination from nearby stars, concluding the...
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NASA May Have Detected Oldest Stars In Universe Formed After Big Bang
NASA's James Webb Space Telescope may have detected the universe's oldest Population III stars in galaxy LAP1-B, 13 billion light-years away.
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Rare Comet Visible In Bengaluru Skies, Residents Share Beautiful Images
The comet's green glow is caused by fluorescence of diatomic carbon (C2) when exposed to ultraviolet sunlight, not reflection.
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Want Skin Like A Baby? Anti-Ageing Influencer Bryan Johnson Says This Is The Secret
Johnson said that the goal is to find a balance with sun exposure, aiming to reap its benefits while avoiding damage.
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After 4 Rain Delays In Perth, UV Lights Used On Adelaide Oval Pitch Amid Heavy Rain Ahead Of 2nd ODI
Stadium officials used ultraviolet (UV) lights to apply external heat to the pitch at the Adelaide Oval ahead of Thursday's encounter.
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SpaceX Launches IMAP, CGO, SWFO-L1 to Probe Solar Frontier and Space Weather
A Falcon 9 lifted off from Kennedy Space Center on Sept. 24, 2025, carrying NASA’s IMAP, CGO, and SWFO-L1 spacecraft. The mission aims to chart the heliosphere’s boundary, monitor Earth’s geocorona, and deliver constant space-weather alerts, protecting satellites and astronauts while expanding knowledge of the solar system’s outer edge.
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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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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 Reveals How Blue Straggler Stars Stay Young in Ancient Clusters
Astronomers using the Hubble Space Telescope have uncovered new clues to the mystery of blue straggler stars—unusually hot, bright stars found in ancient globular clusters. By studying ultraviolet light from 48 clusters, scientists discovered that blue stragglers are more common in sparse clusters, supporting the idea that they form through binar...
-
James Webb Space Telescope Finds Unexpected Ultraviolet Radiation Around Young Protostars
Astronomers using the James Webb Space Telescope have detected unexpected ultraviolet radiation around five young protostars in the Ophiuchus molecular cloud. Since infant stars are not expected to emit UV light, the finding challenges long-standing star-formation models. Researchers ruled out external illumination from nearby stars, concluding the...
-
NASA May Have Detected Oldest Stars In Universe Formed After Big Bang
NASA's James Webb Space Telescope may have detected the universe's oldest Population III stars in galaxy LAP1-B, 13 billion light-years away.
-
Rare Comet Visible In Bengaluru Skies, Residents Share Beautiful Images
The comet's green glow is caused by fluorescence of diatomic carbon (C2) when exposed to ultraviolet sunlight, not reflection.
-
Want Skin Like A Baby? Anti-Ageing Influencer Bryan Johnson Says This Is The Secret
Johnson said that the goal is to find a balance with sun exposure, aiming to reap its benefits while avoiding damage.
-
After 4 Rain Delays In Perth, UV Lights Used On Adelaide Oval Pitch Amid Heavy Rain Ahead Of 2nd ODI
Stadium officials used ultraviolet (UV) lights to apply external heat to the pitch at the Adelaide Oval ahead of Thursday's encounter.
-
SpaceX Launches IMAP, CGO, SWFO-L1 to Probe Solar Frontier and Space Weather
A Falcon 9 lifted off from Kennedy Space Center on Sept. 24, 2025, carrying NASA’s IMAP, CGO, and SWFO-L1 spacecraft. The mission aims to chart the heliosphere’s boundary, monitor Earth’s geocorona, and deliver constant space-weather alerts, protecting satellites and astronauts while expanding knowledge of the solar system’s outer edge.
-
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.
