Tag #Asteroid Impact

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welt.de

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Jul 3, 13:13

Asteroid Near-Miss with Moon Highlights Planetary Defense

Asteroid "2024 YR4", a 60-meter space rock, has a 4% chance of impacting the Moon in the near future, posing no threat to Earth but offering a unique opportunity for observation and scientific study.

Asteroid Near-Miss with Moon Highlights Planetary Defense

Asteroid "2024 YR4", a 60-meter space rock, has a 4% chance of impacting the Moon in the near future, posing no threat to Earth but offering a unique opportunity for observation and scientific study.

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What is the significance of asteroid "2024 YR4"'s close approach to the Moon?

A 60-meter asteroid, "2024 YR4", will pass close to the Moon, with a 4% chance of impact. While posing no threat to Earth, a lunar impact would be visible from Earth and create a crater hundreds of meters to two kilometers wide.

welt.de

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Feb 11, 13:11

Asteroid 2024 YR4: 2% Chance of Earth Impact in 2032

Asteroid 2024 YR4, discovered December 25, 2023, has a 2% chance of impacting Earth on December 22, 2032, according to ESA; it is 40-100 meters in diameter and currently 27 million kilometers away, posing a regional threat if it were to hit.

Asteroid 2024 YR4: 2% Chance of Earth Impact in 2032

Asteroid 2024 YR4, discovered December 25, 2023, has a 2% chance of impacting Earth on December 22, 2032, according to ESA; it is 40-100 meters in diameter and currently 27 million kilometers away, posing a regional threat if it were to hit.

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What is the current estimated probability of asteroid 2024 YR4 impacting Earth, and what are the potential consequences of such an impact?

Asteroid 2024 YR4, estimated at 40-100 meters in diameter, has a 2% chance of impacting Earth on December 22, 2032, according to the ESA. This is up from 1.2% in January, highlighting the ongoing assessment of the threat. While still a low probability, experts emphasize the need for continued observation and preparedness.

news.sky.com

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Feb 6, 16:14

1 in 67 Chance of Asteroid Impact in 2032 Prompts Nuclear Deflection Consideration

Asteroid 2024 YR4, a 100m by 40m space rock, has a 1 in 67 chance of hitting Earth on December 22, 2032, prompting consideration of emergency deflection measures, including a nuclear option, to avert a potential catastrophe.

1 in 67 Chance of Asteroid Impact in 2032 Prompts Nuclear Deflection Consideration

Asteroid 2024 YR4, a 100m by 40m space rock, has a 1 in 67 chance of hitting Earth on December 22, 2032, prompting consideration of emergency deflection measures, including a nuclear option, to avert a potential catastrophe.

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What are the potential consequences of an asteroid impact of this scale, and why is this event considered unusually dangerous?

The asteroid's trajectory will be refined in the coming months, but the current risk necessitates considering deflection strategies. The 2024 YR4 impact probability is significantly higher than average, prompting the ESA to convene and potentially recommend a spacecraft-based response or even nuclear deflection.

us.cnn.com

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Feb 6, 04:08

Asteroid Bennu Collision: Modeling Global Impact Winter and Unexpected Ocean Bloom

A new study in Science Advances models the potential global effects of an asteroid Bennu collision with Earth in 2182, predicting a multi-year "impact winter" with reduced rainfall and global cooling, alongside unexpected ocean plankton blooms.

Asteroid Bennu Collision: Modeling Global Impact Winter and Unexpected Ocean Bloom

A new study in Science Advances models the potential global effects of an asteroid Bennu collision with Earth in 2182, predicting a multi-year "impact winter" with reduced rainfall and global cooling, alongside unexpected ocean plankton blooms.

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How does the study connect the potential Bennu impact to past events and broader patterns of asteroid collisions?

The study connects the potential Bennu impact to broader patterns of medium-sized asteroid collisions, which occur roughly every 100,000 to 200,000 years. By simulating atmospheric changes—including dust, soot, and sulfur aerosols—researchers predict substantial global cooling and ozone depletion. This connects to past events, suggesting early humans may have experienced similar conditions.

pda.kp.ru

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Jan 29, 22:11

Asteroid 2024 YR4: Increased Impact Probability Raises Concerns

Asteroid 2024 YR4, discovered in December 2022, has a non-zero probability of impacting Earth on December 24, 2032, with its estimated size ranging from 55 to over 200 meters, potentially causing regional devastation.

Asteroid 2024 YR4: Increased Impact Probability Raises Concerns

Asteroid 2024 YR4, discovered in December 2022, has a non-zero probability of impacting Earth on December 24, 2032, with its estimated size ranging from 55 to over 200 meters, potentially causing regional devastation.

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What is the current risk assessment for asteroid 2024 YR4, and what are the potential consequences of an impact given the uncertainty in its size?

An asteroid, designated 2024 YR4, poses a potential threat to Earth on December 24, 2032. Initial observations suggested a low probability of impact, but further tracking has increased the risk, leading to a higher rating on asteroid threat scales. The asteroid's size is estimated between 55 and 200+ meters in diameter, potentially causing significant damage upon impact.

dailymail.co.uk

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Dec 4, 19:09

Massive Asteroid Impacts Show No Long-Term Climate Change

Two massive asteroid impacts, one in what is now Chesapeake Bay 35 million years ago and another in Russia 25,000 years prior, surprisingly caused no long-term climate change, despite creating huge craters and immediate devastation, as revealed by analysis of foraminifera fossils.

Massive Asteroid Impacts Show No Long-Term Climate Change

Two massive asteroid impacts, one in what is now Chesapeake Bay 35 million years ago and another in Russia 25,000 years prior, surprisingly caused no long-term climate change, despite creating huge craters and immediate devastation, as revealed by analysis of foraminifera fossils.

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What are the implications of these findings for our understanding of asteroid impacts and future planetary defense strategies?

The study highlights the limitations of current sampling methods in capturing shorter-term climate effects of asteroid impacts. While these events would cause immediate devastation, their long-term climate impact may be less significant than previously thought. Further research is needed to improve the resolution of climate records.

cnnespanol.cnn.com

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Apr 13, 01:11

Dinosaur Populations Thrived Before Asteroid Impact, Study Suggests

A new study using statistical modeling of the North American fossil record suggests that dinosaurs were thriving before the asteroid impact 66 million years ago, challenging previous theories of pre-existing decline; geological factors, not population changes, likely account for the apparent decreas...

Dinosaur Populations Thrived Before Asteroid Impact, Study Suggests

A new study using statistical modeling of the North American fossil record suggests that dinosaurs were thriving before the asteroid impact 66 million years ago, challenging previous theories of pre-existing decline; geological factors, not population changes, likely account for the apparent decreas...

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Were dinosaurs already declining before the asteroid impact, or did the impact cause their extinction?

A new study published in Current Biology suggests that dinosaurs were thriving before the asteroid impact 66 million years ago, contrary to previous beliefs. Researchers analyzed the North American fossil record for 18 million years before the extinction event, using statistical modeling to account for biases in fossil discovery. The results indicate that dinosaur populations remained stable, challenging the hypothesis of a pre-existing decline.

welt.de

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Feb 7, 13:10

Lunar Canyons Formed by Asteroid Impact, Impacting Artemis Mission

A recent study reveals that the Moon's Vallis Schrödinger and Vallis Planck canyons, far deeper than the Grand Canyon, formed within ten minutes due to an asteroid or comet impact 3.8 billion years ago, creating the 320km Schrödinger crater near the lunar South Pole; this impacts Artemis mission pla...

Lunar Canyons Formed by Asteroid Impact, Impacting Artemis Mission

A recent study reveals that the Moon's Vallis Schrödinger and Vallis Planck canyons, far deeper than the Grand Canyon, formed within ten minutes due to an asteroid or comet impact 3.8 billion years ago, creating the 320km Schrödinger crater near the lunar South Pole; this impacts Artemis mission pla...

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What evidence supports the theory of an oblique impact causing the formation of the lunar canyons, and what are the secondary consequences of this event?

The asymmetrical nature of the canyons, their orientation diverging from the crater's center, indicates an oblique impact angle. The ejected material concentrated in two beams, forming the canyons. This asymmetry is crucial for the Artemis program, as it suggests planned landing sites near the South Pole-Aitken basin will be less obstructed by Schrödinger crater ejecta.

cnn.com

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Feb 6, 01:10

Bennu Asteroid Impact: Modeling Global Consequences and Ecosystem Response

A new study published in Science Advances models the effects of a Bennu-sized asteroid impacting Earth, predicting a multi-year global winter, significant ecosystem disruption, and potential long-term implications for human populations and food security, with a 1 in 2,700 chance of such an impact oc...

Bennu Asteroid Impact: Modeling Global Consequences and Ecosystem Response

A new study published in Science Advances models the effects of a Bennu-sized asteroid impacting Earth, predicting a multi-year global winter, significant ecosystem disruption, and potential long-term implications for human populations and food security, with a 1 in 2,700 chance of such an impact oc...

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What are the immediate global consequences predicted for an asteroid like Bennu colliding with Earth?

A new study models the effects of a Bennu-like asteroid impact, revealing a potential "impact winter" with decreased rainfall and global cooling lasting several years. The study, published in Science Advances, uses climate models to simulate the consequences of such an event, highlighting significant disruptions to ecosystems and food security.

edition.cnn.com

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Jan 31, 22:08

Newly Discovered Asteroid 2024 YR4 Poses Low but Nonzero Risk of Earth Impact in 2032

Asteroid 2024 YR4, discovered December 27, 2023, has a 1.2% chance of impacting Earth on December 22, 2032, according to NASA and ESA; international groups are tracking and assessing mitigation strategies.

Newly Discovered Asteroid 2024 YR4 Poses Low but Nonzero Risk of Earth Impact in 2032

Asteroid 2024 YR4, discovered December 27, 2023, has a 1.2% chance of impacting Earth on December 22, 2032, according to NASA and ESA; international groups are tracking and assessing mitigation strategies.

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What is the immediate significance of asteroid 2024 YR4's discovery and the current probability of an Earth impact?

On December 27, 2023, the ATLAS telescope discovered asteroid 2024 YR4, estimated to be 131-328 feet wide, with a 1.2% chance of impacting Earth on December 22, 2032. NASA and ESA are tracking it; the impact could cause significant local damage if it occurs.

china.org.cn

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Dec 7, 07:07

China's Observatories Successfully Track Asteroid 2024 XA1 Before Earth Impact

Chinese observatories successfully tracked and imaged asteroid 2024 XA1 before its atmospheric entry over eastern Siberia on December 3, 2024, marking the 11th successful early warning of an asteroid impacting Earth and highlighting advancements in near-Earth object detection capabilities.

China's Observatories Successfully Track Asteroid 2024 XA1 Before Earth Impact

Chinese observatories successfully tracked and imaged asteroid 2024 XA1 before its atmospheric entry over eastern Siberia on December 3, 2024, marking the 11th successful early warning of an asteroid impacting Earth and highlighting advancements in near-Earth object detection capabilities.

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What was the significance of China's successful tracking and imaging of asteroid 2024 XA1 before its atmospheric entry?

On December 3, 2024, observatories in China, including the Lijiang branch of the Yunnan Observatories, successfully tracked and imaged asteroid 2024 XA1 before its atmospheric entry over eastern Siberia. This marked the 11th successful early warning of an asteroid impacting Earth in 2024, showcasing advancements in near-Earth object (NEO) detection. The asteroid, estimated between 75 centimeters and one meter in diameter, was first detected by a University of Arizona telescope and subsequently imaged by multiple Chinese observatories.

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