Tag #Space

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dailymail.co.uk

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Jul 3, 04:11

Inactive NASA Satellite Emits Unprecedented Radio Burst

A nearly 60-year-old inactive NASA satellite, Relay 2, unexpectedly emitted a powerful radio signal lasting a fraction of a second, briefly becoming the brightest object in the sky, detected by Australian radio telescopes; experts believe an electrostatic discharge or micrometeoroid impact triggered...

Inactive NASA Satellite Emits Unprecedented Radio Burst

A nearly 60-year-old inactive NASA satellite, Relay 2, unexpectedly emitted a powerful radio signal lasting a fraction of a second, briefly becoming the brightest object in the sky, detected by Australian radio telescopes; experts believe an electrostatic discharge or micrometeoroid impact triggered...

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How does this event compare to previously observed electrostatic discharges from satellites, and what are the broader implications for understanding space debris?

The event highlights the unpredictable nature of space debris and its potential to interfere with astronomical observations. The signal, initially mistaken for a fast radio burst (FRB), originated from within Earth's orbit, unlike typical FRBs from distant galaxies. This underscores the need for improved tracking and understanding of inactive satellites.

bbc.com

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Jun 23, 16:15

Vera Rubin Observatory Unveils First Images, Promises Astronomical Breakthroughs

The Vera Rubin Observatory in Chile unveiled its first images, showcasing its ability to observe vast gas clouds 9,000 light years away and promising breakthroughs in understanding dark matter, detecting killer asteroids, and potentially discovering a ninth planet within the first year of operation.

Vera Rubin Observatory Unveils First Images, Promises Astronomical Breakthroughs

The Vera Rubin Observatory in Chile unveiled its first images, showcasing its ability to observe vast gas clouds 9,000 light years away and promising breakthroughs in understanding dark matter, detecting killer asteroids, and potentially discovering a ninth planet within the first year of operation.

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What immediate impact will the Vera Rubin Observatory have on our understanding of the universe?

The Vera Rubin Observatory in Chile has released its first images, showcasing its ability to observe deep space. One image depicts a star-forming region 9,000 light-years away. This powerful telescope, equipped with the world's most powerful digital camera, promises to revolutionize our understanding of the universe.

welt.de

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Jun 6, 04:13

Musk and Trump in Public Feud Over Tax Bill and Government Contracts

Elon Musk and Donald Trump are engaged in a highly public dispute after cuts to electric vehicle subsidies in a Trump-backed tax bill led to Musk urging Republicans to side with him, resulting in Trump threatening to cut government contracts with Musk's companies and a subsequent stock market drop f...

Musk and Trump in Public Feud Over Tax Bill and Government Contracts

Elon Musk and Donald Trump are engaged in a highly public dispute after cuts to electric vehicle subsidies in a Trump-backed tax bill led to Musk urging Republicans to side with him, resulting in Trump threatening to cut government contracts with Musk's companies and a subsequent stock market drop f...

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Reduced Inequality

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How did the proposed cuts to electric vehicle subsidies in the tax bill contribute to the escalating conflict between Musk and Trump?

The conflict stems from disagreements over a tax and spending plan that includes cuts to electric vehicle subsidies, impacting Tesla. Trump's threat to end government contracts with Musk's companies, including SpaceX, caused a significant drop in Tesla's stock price and triggered Musk's counterattack. This public falling out highlights the fragility of political alliances driven by shared interests, particularly when financial incentives are involved.

dailymail.co.uk

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May 29, 13:12

Passing Star Poses 0.2% Risk of Earth Ejection in Next 5 Billion Years

A new study predicts a 0.2% chance that Earth could be ejected from its orbit by a passing star within the next five billion years, resulting in a global freeze and extinction; the study used simulations to assess solar system stability, considering passing stars.

Passing Star Poses 0.2% Risk of Earth Ejection in Next 5 Billion Years

A new study predicts a 0.2% chance that Earth could be ejected from its orbit by a passing star within the next five billion years, resulting in a global freeze and extinction; the study used simulations to assess solar system stability, considering passing stars.

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Life on Land

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What is the likelihood of a passing star causing Earth's ejection from its orbit and the resulting extinction of life, and what are the key factors contributing to this risk?

A new study suggests a passing star could fling Earth out of its orbit, leading to a global freeze and the extinction of all life. The probability of this event over the next five billion years is estimated at 0.2%. This finding adds to existing theories about potential Earth-ending scenarios.

dw.com

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May 23, 13:12

Trump's $175 Billion "Golden Dome" Missile Defense Plan Sparks International Concern

US President Donald Trump announced a $175 billion missile defense system, "Golden Dome," modeled after Israel's "Iron Dome," to counter threats from Russia and China by 2029, sparking international concern and criticism over costs and feasibility.

Trump's $175 Billion "Golden Dome" Missile Defense Plan Sparks International Concern

US President Donald Trump announced a $175 billion missile defense system, "Golden Dome," modeled after Israel's "Iron Dome," to counter threats from Russia and China by 2029, sparking international concern and criticism over costs and feasibility.

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Peace, Justice, and Strong Institutions

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What are the potential long-term consequences of the "Golden Dome" project for the global arms race, international relations, and the balance of power?

The "Golden Dome's" success hinges on technological advancements and international cooperation, yet its enormous cost and ambitious timeline raise serious questions about its practicality and potential for unintended consequences. The project's impact on global arms races and strategic stability remains uncertain. Concerns regarding procurement processes and SpaceX's potential role also warrant attention.

lemonde.fr

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May 9, 10:14

Highly Precise Atomic Clock Aboard ISS to Test Einstein's Theory

The European Space Agency's ACES mission launched Pharao, a highly precise atomic clock aboard the ISS on April 22, 2024, to test Einstein's theory of relativity with twenty times more precision than previous experiments, potentially revealing new physics.

Highly Precise Atomic Clock Aboard ISS to Test Einstein's Theory

The European Space Agency's ACES mission launched Pharao, a highly precise atomic clock aboard the ISS on April 22, 2024, to test Einstein's theory of relativity with twenty times more precision than previous experiments, potentially revealing new physics.

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What significant technological challenges were overcome in developing Pharao, and how did these affect the project timeline?

This experiment aims to improve the precision of existing measurements of time dilation predicted by general relativity by a factor of 20. The extremely precise clock will measure differences in time passage between the ISS and Earth, potentially revealing new forces of nature if the results deviate from predictions.

foxnews.com

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Jun 26, 10:15

Largest-Ever Comet, C/2014 UN271, Emits Carbon Monoxide Jets

Astronomers using the ALMA telescope have discovered that comet C/2014 UN271, located near Neptune, is 85 miles across—more than 10 times larger than any known comet—and emits carbon monoxide gas jets; this discovery offers unique insights into cometary evolution and the early solar system.

Largest-Ever Comet, C/2014 UN271, Emits Carbon Monoxide Jets

Astronomers using the ALMA telescope have discovered that comet C/2014 UN271, located near Neptune, is 85 miles across—more than 10 times larger than any known comet—and emits carbon monoxide gas jets; this discovery offers unique insights into cometary evolution and the early solar system.

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How do the observed carbon monoxide jets and outgassing patterns of comet C/2014 UN271 contribute to our understanding of cometary evolution and behavior?

The comet's size and composition provide insights into the formation and evolution of comets. The observed outgassing patterns raise questions about how the comet will behave as it approaches the sun, offering a unique opportunity to study a primitive icy body.

dw.com

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Jun 23, 22:15

Vera Rubin Observatory Releases First Images, Unveiling Unprecedented Cosmic Details

The Vera Rubin Observatory in Chile released its first images, showcasing unprecedented detail of nebulae, galaxies, and 2104 previously unknown asteroids (including seven near-Earth objects) detected in just 10 hours, using the largest digital camera ever built; its decade-long Legacy Survey of Spa...

Vera Rubin Observatory Releases First Images, Unveiling Unprecedented Cosmic Details

The Vera Rubin Observatory in Chile released its first images, showcasing unprecedented detail of nebulae, galaxies, and 2104 previously unknown asteroids (including seven near-Earth objects) detected in just 10 hours, using the largest digital camera ever built; its decade-long Legacy Survey of Spa...

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What are the immediate scientific implications of the Vera Rubin Observatory's first images and its planned Legacy Survey of Space and Time?

The Vera Rubin Observatory in Chile has released its first images, showcasing unprecedented detail of star-forming regions and distant galaxies. These images, taken with the largest digital camera ever built, reveal features previously unseen in nebulae and galaxies like the Trifid and Laguna Nebulae and the Virgo galaxy cluster. This powerful new telescope, operational after over two decades of work, will significantly advance our understanding of the cosmos.

dailymail.co.uk

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Jun 2, 19:17

Milky Way-Andromeda Collision Probability Lowered by New Simulation

New research suggests a 50% chance of the Milky Way colliding with Andromeda within 10 billion years, lower than previous estimates, due to the Large Magellanic Cloud's gravitational influence; even if it occurs, Earth faces minimal direct risk.

Milky Way-Andromeda Collision Probability Lowered by New Simulation

New research suggests a 50% chance of the Milky Way colliding with Andromeda within 10 billion years, lower than previous estimates, due to the Large Magellanic Cloud's gravitational influence; even if it occurs, Earth faces minimal direct risk.

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What is the probability of the Milky Way colliding with the Andromeda galaxy, and what are the immediate implications of this event?

Scientists have calculated a 50% chance of the Milky Way colliding with the Andromeda galaxy within the next 10 billion years, a probability lower than previously believed. This collision, if it occurs, would be devastating but is less likely to occur within the next 5 billion years.

us.cnn.com

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May 24, 04:10

Dueling Galaxies Offer Glimpse into Early Universe

Astronomers using the VLT and ALMA telescopes observed two galaxies 11 billion light-years away colliding at 1.8 million kilometers per hour, with one galaxy's quasar disrupting the other's star formation, offering a rare glimpse into galaxy mergers in the early universe.

Dueling Galaxies Offer Glimpse into Early Universe

Astronomers using the VLT and ALMA telescopes observed two galaxies 11 billion light-years away colliding at 1.8 million kilometers per hour, with one galaxy's quasar disrupting the other's star formation, offering a rare glimpse into galaxy mergers in the early universe.

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How does this observation refine our understanding of galaxy mergers in the early universe?

The collision's impact is the disruption of star formation in the "victim" galaxy due to intense radiation from the quasar. This supports theories about quasar effects on nearby galaxies, previously only theoretical. The event, observed using the VLT and ALMA telescopes, offers a rare glimpse into the early universe when such mergers were more common.

bbc.com

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May 12, 16:10

Mysterious Astronomical Explosions Suggest Existence of Intermediate-Mass Black Holes

Astronomers have observed approximately a dozen unusual bright, fast explosions, initially thought to be failed supernovae, but now theorized to be caused by intermediate-mass black holes consuming nearby stars, a discovery that could bridge the gap in black hole size understanding.

Mysterious Astronomical Explosions Suggest Existence of Intermediate-Mass Black Holes

Astronomers have observed approximately a dozen unusual bright, fast explosions, initially thought to be failed supernovae, but now theorized to be caused by intermediate-mass black holes consuming nearby stars, a discovery that could bridge the gap in black hole size understanding.

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How does the intermediate-mass black hole theory explain the observed properties of these bright, fast explosions, and what evidence supports this hypothesis?

The LBOTs' unusual characteristics, including their brightness and rapid dissipation, challenge initial explanations. A leading hypothesis proposes that intermediate-mass black holes, swallowing nearby stars, produce these powerful bursts of energy. This would fill a gap in our understanding of black hole formation.

cnn.com

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May 1, 13:15

Unprecedented Sun Image Reveals Continent-Sized Sunspots, Improving Solar Weather Prediction

The Inouye Solar Telescope's new Visible Tunable Filter captured a high-resolution image of the sun's surface in early December 2023, revealing continent-sized sunspots indicative of intense magnetic activity and the potential for disruptive solar flares and CMEs, improving predictions of dangerous ...

Unprecedented Sun Image Reveals Continent-Sized Sunspots, Improving Solar Weather Prediction

The Inouye Solar Telescope's new Visible Tunable Filter captured a high-resolution image of the sun's surface in early December 2023, revealing continent-sized sunspots indicative of intense magnetic activity and the potential for disruptive solar flares and CMEs, improving predictions of dangerous ...

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How does the sunspot formation mechanism, as revealed by the new image, affect the sun's energy output and its interaction with Earth?

The high-resolution image, the first from the VTF, allows scientists to study the sun's complex magnetic fields and their impact on solar activity. Sunspots appear darker due to magnetic fields preventing heat from reaching the surface; however, they remain significantly hotter than anything on Earth. This detailed view helps understand the 11-year solar cycle and predict the intensity and frequency of CMEs.

Showing 1 to 12 of 133 results