Tag #Astronomy

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forbes.com

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Mar 20, 19:17

T Corona Borealis Poised for Imminent Explosion

The binary star system T Corona Borealis (TCrB) is predicted to explode and become visible to the naked eye next week, brightening for the first time since 1946 after showing recent brightness dips since September 2023, providing a rare opportunity for astronomical observation.

T Corona Borealis Poised for Imminent Explosion

The binary star system T Corona Borealis (TCrB) is predicted to explode and become visible to the naked eye next week, brightening for the first time since 1946 after showing recent brightness dips since September 2023, providing a rare opportunity for astronomical observation.

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What observational data led to the prediction of T CrB's imminent nova, and how does this relate to previous brightening events?

Astronomers' predictions are based on historical data showing brightness dips preceding T CrB's previous nova events. The American Association of Variable Star Observers' prediction, while initially inaccurate, was followed by continuous monitoring that revealed crucial variations suggesting the explosion. This highlights the importance of ongoing observation in astronomical predictions.

zeit.de

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Mar 18, 07:16

Chilean Industrial Project Threatens Paranal Observatory

A planned industrial complex near Chile's Paranal Observatory threatens to increase light pollution by at least 35% over the Very Large Telescope and more than 50% over the Cherenkov Telescope Array, impacting astronomical research and potentially compromising the detection of exoplanets and hazardo...

Chilean Industrial Project Threatens Paranal Observatory

A planned industrial complex near Chile's Paranal Observatory threatens to increase light pollution by at least 35% over the Very Large Telescope and more than 50% over the Cherenkov Telescope Array, impacting astronomical research and potentially compromising the detection of exoplanets and hazardo...

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What are the potential long-term consequences of insufficient spatial separation between industrial projects and the Paranal Observatory?

Inna's projected 1000+ light sources threaten to compromise the Paranal Observatory's ability to detect exoplanets, observe faint galaxies, and monitor potentially hazardous asteroids. This directly conflicts with Chile's strategic priorities in both astronomy and green energy development.

cnn.com

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Mar 17, 19:16

Four Sub-Earth Exoplanets Discovered Orbiting Barnard's Star

Using the MAROON-X and ESPRESSO instruments, astronomers discovered four sub-Earth exoplanets orbiting Barnard's Star, the nearest single star system to Earth, challenging previous assumptions about planetary formation around red dwarfs and advancing the search for habitable exoplanets.

Four Sub-Earth Exoplanets Discovered Orbiting Barnard's Star

Using the MAROON-X and ESPRESSO instruments, astronomers discovered four sub-Earth exoplanets orbiting Barnard's Star, the nearest single star system to Earth, challenging previous assumptions about planetary formation around red dwarfs and advancing the search for habitable exoplanets.

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What is the significance of discovering four sub-Earth exoplanets orbiting Barnard's Star, the closest single star system to our solar system?

Astronomers using the MAROON-X instrument on the Gemini North telescope and ESPRESSO on the Very Large Telescope have found strong evidence of four sub-Earth exoplanets orbiting Barnard's Star, the nearest single star system to Earth. These planets are significantly smaller than Earth, ranging from 19% to 34% of Earth's mass, and orbit very closely to their star, resulting in surface temperatures too hot to support life. This discovery was published March 11 in The Astrophysical Journal Letters.

forbes.com

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Mar 14, 10:09

Blood Moon" Total Lunar Eclipse Visible Worldwide

A total lunar eclipse, or "blood moon", occurred on Thursday night into Friday morning, turning the full "Worm Moon" reddish due to sunlight refraction through Earth's atmosphere; the eclipse, dubbed the "Columbus Eclipse", mirrored a 1504 event used by Christopher Columbus and occurs within a 521-y...

Blood Moon" Total Lunar Eclipse Visible Worldwide

A total lunar eclipse, or "blood moon", occurred on Thursday night into Friday morning, turning the full "Worm Moon" reddish due to sunlight refraction through Earth's atmosphere; the eclipse, dubbed the "Columbus Eclipse", mirrored a 1504 event used by Christopher Columbus and occurs within a 521-y...

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What is the significance of this eclipse being called the "Columbus Eclipse", and how does the 521-year cycle affect the predictability of such events?

This particular eclipse, dubbed the "Columbus Eclipse", mirrored a similar event in 1504, separated by a 521-year cycle called a hypersaros. The 1504 eclipse was used by Christopher Columbus to influence the Arawak people, highlighting the historical and astronomical significance of these cyclical events.

theglobeandmail.com

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Mar 12, 22:13

Saturn Confirmed as Solar System's 'Moon King' with 274 Moons

A team of Canadian and Taiwanese researchers confirmed Saturn has 274 moons, surpassing Jupiter's 95, after discovering 128 new moons using the Canada France Hawaii Telescope; the small moons are likely remnants of recent collisions.

Saturn Confirmed as Solar System's 'Moon King' with 274 Moons

A team of Canadian and Taiwanese researchers confirmed Saturn has 274 moons, surpassing Jupiter's 95, after discovering 128 new moons using the Canada France Hawaii Telescope; the small moons are likely remnants of recent collisions.

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How many moons does Saturn now have, and what is the significance of this discovery in relation to other planets?

Canadian and Taiwanese researchers have confirmed Saturn has 274 moons, nearly double the number of Jupiter's 95 moons. This discovery, ratified by the International Astronomical Union, settles a long-standing debate about which planet has more moons.

zeit.de

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Mar 11, 10:18

Venus Appears as Thin Crescent in Evening Sky

Venus, currently visible as a thin crescent in the western evening sky due to its position between the sun and Earth, is easily observable with binoculars, a phenomenon that contrasts with ancient beliefs and highlights its orbital dynamics.

Venus Appears as Thin Crescent in Evening Sky

Venus, currently visible as a thin crescent in the western evening sky due to its position between the sun and Earth, is easily observable with binoculars, a phenomenon that contrasts with ancient beliefs and highlights its orbital dynamics.

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What are the key observable characteristics of Venus in the current night sky, and what causes this particular appearance?

Venus is currently visible as a thin crescent in the western sky during early evening. A simple binocular is sufficient for observation, due to its relatively close proximity to Earth. This crescent phase is due to Venus being between the sun and Earth, primarily showing its unilluminated side.

welt.de

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Mar 18, 07:16

Chilean Industrial Project Threatens Paranal Observatory's Astronomical Research

A planned industrial complex in Chile's Atacama Desert threatens the Paranal Observatory by increasing light pollution by at least 35 percent and impairing telescope functionality, hindering astronomical research, particularly exoplanet detection and asteroid monitoring.

Chilean Industrial Project Threatens Paranal Observatory's Astronomical Research

A planned industrial complex in Chile's Atacama Desert threatens the Paranal Observatory by increasing light pollution by at least 35 percent and impairing telescope functionality, hindering astronomical research, particularly exoplanet detection and asteroid monitoring.

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Industry, Innovation, and Infrastructure

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How will the Inna industrial complex's light and atmospheric pollution affect the scientific capabilities of the Paranal Observatory's telescopes?

A planned industrial complex near Chile's Paranal Observatory threatens astronomical research. The Inna project would increase light pollution by at least 35 percent over the Very Large Telescope and more than 50 percent over the Cherenkov Telescope Array, impacting observations. Air turbulence and vibrations from the facility could also impair telescope functionality.

nos.nl

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Mar 18, 22:10

Hydrogen Plant Threatens Chilean Observatory

The European Southern Observatory (ESO) is protesting a planned hydrogen plant near its Paranal Observatory in Chile's Atacama Desert, fearing light pollution, dust, and atmospheric turbulence will severely impact observations from its Very Large Telescope and the upcoming Extremely Large Telescope,...

Hydrogen Plant Threatens Chilean Observatory

The European Southern Observatory (ESO) is protesting a planned hydrogen plant near its Paranal Observatory in Chile's Atacama Desert, fearing light pollution, dust, and atmospheric turbulence will severely impact observations from its Very Large Telescope and the upcoming Extremely Large Telescope,...

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What are the immediate consequences of building a hydrogen plant near the Paranal Observatory in the Atacama Desert?

The European Southern Observatory (ESO) is protesting the construction of a hydrogen plant near its Paranal Observatory in Chile's Atacama Desert, citing concerns about light pollution, dust, and atmospheric turbulence that would severely impact the observatory's astronomical observations. The plant, part of a larger project by the American company AES, threatens the observatory's unique dark-sky conditions, crucial for its research.

mk.ru

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Mar 15, 10:10

Binary Star System Discovered as Source of Mysterious Radio Pulses

A binary star system, ILTJ1101, located 1600 light-years away in Ursa Major, emits repeating radio pulses every 125 minutes due to the interaction of a visible red dwarf and an unseen white dwarf star, marking the first such detection outside of magnetars.

Binary Star System Discovered as Source of Mysterious Radio Pulses

A binary star system, ILTJ1101, located 1600 light-years away in Ursa Major, emits repeating radio pulses every 125 minutes due to the interaction of a visible red dwarf and an unseen white dwarf star, marking the first such detection outside of magnetars.

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How does the interaction between the red dwarf and white dwarf stars in ILTJ1101 generate the observed radio pulses?

The red dwarf's back-and-forth movement, with the same 125-minute period as the radio pulses, indicates gravitational influence from the white dwarf. Analysis of the optical spectra confirmed the red dwarf's rapid movement and the white dwarf's mass. This binary system's interaction generates radio wave bursts.

smh.com.au

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Mar 14, 10:09

Saturn's Rings Temporarily Hidden by Equinox

Saturn's rings are currently invisible from Earth due to the planet's equinox causing an edge-on view; they will reappear around May 2026, though their long-term existence remains uncertain.

Saturn's Rings Temporarily Hidden by Equinox

Saturn's rings are currently invisible from Earth due to the planet's equinox causing an edge-on view; they will reappear around May 2026, though their long-term existence remains uncertain.

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How does Saturn's axial tilt and orbital position affect the visibility of its rings from Earth?

This alignment occurs due to Saturn's axial tilt and orbit relative to Earth. The rings' thinness (tens of meters thick) makes them practically invisible when viewed edge-on from 1.5 billion kilometers away. This event will last until approximately May 2026.

zeit.de

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Mar 12, 04:11

Partial Lunar Eclipse Visible in Parts of Germany on Friday Morning

A partial lunar eclipse will occur on Friday morning in Germany, beginning at 4:56 AM CET and becoming partially visible in the west around 6:00 AM, though the moon will set before the eclipse is complete; weather conditions will significantly impact visibility.

Partial Lunar Eclipse Visible in Parts of Germany on Friday Morning

A partial lunar eclipse will occur on Friday morning in Germany, beginning at 4:56 AM CET and becoming partially visible in the west around 6:00 AM, though the moon will set before the eclipse is complete; weather conditions will significantly impact visibility.

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What are the key timing and visibility factors for the partial lunar eclipse over Germany on Friday morning?

A partial lunar eclipse will be visible in parts of Germany on Friday morning, weather permitting. The eclipse will begin at 4:56 AM CET, with the partial eclipse visible shortly after 6:00 AM in the west. However, the moon will set before the eclipse is complete, with sunset times varying across the country.

kathimerini.gr

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Mar 5, 22:10

MIT Technology Review Unveils Top 10 Breakthrough Technologies for 2025

MIT Technology Review's Ted Hu presented the top 10 technologies for 2025, including the Vera C. Rubin Observatory, generative AI, smaller language models, methane reduction solutions for cows, robotaxis, cleaner aircraft fuel, rapidly trained robots, a long-lasting HIV prevention drug (100% success...

MIT Technology Review Unveils Top 10 Breakthrough Technologies for 2025

MIT Technology Review's Ted Hu presented the top 10 technologies for 2025, including the Vera C. Rubin Observatory, generative AI, smaller language models, methane reduction solutions for cows, robotaxis, cleaner aircraft fuel, rapidly trained robots, a long-lasting HIV prevention drug (100% success...

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Climate Action

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How do the chosen technologies address sustainability concerns, and what are the wider societal implications of these solutions?

These advancements span various sectors, demonstrating technological progress toward sustainability (methane reduction in cows, robotaxis, cleaner aircraft fuel), improved healthcare (long-lasting HIV prevention drug with 100% success rate in Uganda trials), and enhanced manufacturing (rapidly trained robots and green steel production). The common thread is significant efficiency gains and environmental consciousness.

Showing 121 to 132 of 182 results