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Archive for the ‘asteroid/comet impacts’ category: Page 9

Jul 16, 2022

Skyscraper-size asteroid will blaze past Earth in a close approach this Sunday

Posted by in categories: asteroid/comet impacts, existential risks

Asteroid 2022 KY4 will, thankfully, miss our planet by a few million miles.


The skyscraper-size asteroid 2022 KY4 will make its closest recorded approach to Earth on Sunday, July 17, passing within about 3.8 million miles.

Jul 13, 2022

China is building the world’s most far-reaching radar system for planetary defense

Posted by in categories: asteroid/comet impacts, existential risks

Jul 12, 2022

Scientists Update Course Of Asteroid Headed Towards Earth

Posted by in categories: asteroid/comet impacts, existential risks, military

While it may seem a bit silly to think about an asteroid hitting the planet in 2052, the 2021 QM1 hitting Earth would be devastating. The asteroid is said to be 50 meters or 150 feet in diameter. Should it impact, it would have a force of six tons of TNT. To put that in perspective, it would be 400 times more powerful than the atomic bombs that had been dropped on Hiroshima. That would certainly be enough to destroy a large city and much more. There had been a 12-megaton asteroid that hit Earth over a remote part of the Siberia region. The impact flattened over 830 miles of forest, and three people were said to have died because of the impact. However, if that impact happened anywhere that was populated, that entire city, town, or state would essentially have been wiped off the map.

The 2021 QM1 had initially been discovered in August of 2021 at the Mount Lemmon observatory. It was discovered along with a dozen other asteroids. However, during Asteroid Day 2022 which took place in June of 2022, the ESA (European Space Agency) deemed that the 2021 QM1 asteroid would be completely safe and not strike the earth. Another asteroid by the name 2022, AE1, was also said to be on a collision course with the planet before it was recently deemed safe as well. The 70-meter asteroid is said to strike the moon before it would hit our planet. That might not seem like good news, considering the moon being destroyed might cause significant other damage to the planet, but it’s still good news.

Thankfully, there are scientists and astronomers that revolve their lives around studying the trajectory of rogue asteroids. They are meant to alert the planet should we be in any imminent danger. However, would the public go a bit crazy if they knew a giant asteroid was catapulting straight to Earth? Hopefully, they would not. Mass hysteria is always something to think about when there is a credible threat that cannot be vanquished by our modern technology.

Jul 10, 2022

Scientists Found Never-Before-Seen Crystals in Dust From The Chelyabinsk Meteorite

Posted by in categories: asteroid/comet impacts, existential risks

Researchers have discovered never-before-seen types of crystal hidden in tiny grains of perfectly preserved meteorite dust. The dust was left behind by a massive space rock that exploded over Chelyabinsk, Russia, nine years ago.

On 15 Feb 2013, an asteroid measuring 59 feet (18 meters) across and weighing 12,125 tons (11,000 metric tons) entered Earth’s atmosphere at around 41,600 mph (66,950 km/h).

Continue reading “Scientists Found Never-Before-Seen Crystals in Dust From The Chelyabinsk Meteorite” »

Jul 6, 2022

Scientists just detected a bus-sized asteroid that will fly extremely close to Earth tonight

Posted by in categories: asteroid/comet impacts, existential risks

😳!


Astronomers detected a small asteroid called 2022 NF that will pass within 23% of the distance from Earth to the moon tonight.

Jul 1, 2022

Never-before-seen crystals found in perfectly preserved meteorite dust

Posted by in categories: asteroid/comet impacts, existential risks

😳!


Researchers have discovered never-before-seen types of crystal hidden in tiny grains of perfectly preserved meteorite dust. The dust was left behind by a massive space rock that exploded over Chelyabinsk, Russia, nine years ago.

Continue reading “Never-before-seen crystals found in perfectly preserved meteorite dust” »

Jun 30, 2022

World’s first full-scale planetary defense test against potential asteroid impacts

Posted by in categories: asteroid/comet impacts, existential risks

A giant asteroid’s impact is considered the likely cause of the mass extinction of the dinosaurs almost 66 million years ago.

While there is no potential harm from an asteroid on the Earth at present, it is still important to keep our defense system ready in order to prevent catastrophic consequences such as impacts by deflecting trajectories of asteroids if one is ever discovered.

With this aim, NASA launched the Double Asteroid Redirection Test (DART) mission, the world’s first planetary defense test mission, last November. DART is the first-ever mission dedicated to investigating and demonstrating one method of asteroid deflection by changing an asteroid’s motion in space through kinetic impact. In summary, it is to collide with an asteroid and deflect it from its orbit in order to provide valuable information for the development of such a planetary defense system.

Jun 28, 2022

How to See the Giant Comet Heading Our Way Soon

Posted by in categories: asteroid/comet impacts, existential risks

One of the largest comets known is approaching our planet on the only trip through the inner solar system it will make during our lifetimes.

Five years ago, the Hubble Space Telescope spotted a large comet at the farthest distance ever, as it was approaching the sun from way out between the orbits of Saturn and Uranus. Now, that giant space snowball is coming in for its closest pass by Earth in just a few weeks.

Comet C/2017 K2 will be at its nearest point to us on its current swing through the inner solar system on July 14. Even at its closest, however, it will still be farther away from us than the average distance between Earth and Mars. This will likely make it difficult to see the comet without at least a small telescope, despite its substantial stature.

Jun 18, 2022

NASA publishes the results of its intense killer asteroid dress rehearsal

Posted by in categories: asteroid/comet impacts, existential risks, health

Monitoring PHAs is a huge responsibility that requires a worldwide effort, including tracking, alerts, and disaster preparedness. Last year, over 100 participants from 18 countries (including NASA scientists and the NEOWISE mission) conducted an international exercise that simulated an encounter with an asteroid that made a close flyby to Earth. As NASA revealed in a recently-released study, the exercise was a complete success. The lessons learned could help avert real impacts in the near future or significantly limit the devastation one could cause.

The study, which appeared in the May 31 issue of The Planetary Science Journal (titled “Apophis Planetary Defense Campaign”), was conducted by the Planetary Defense Exercise Working Group and led by Vishnu Reddy — an Associate Professor at the University of Arizona’s Lunar and Planetary Laboratory (LPI). The working group is made up of more than 100 participants from 18 countries and includes facilities like NASA’s Planetary Defense Coordination Office (PDCO), the ESA NEO Coordination Centre, the Russian Academy of Sciences, the Korea Astronomy and Space Science Institute (KASI), and many universities and research institutes worldwide.

As Reddy and his colleagues describe in the paper, the planetary defense exercise was the culmination of work that began in 2017, which was designed to test the operational readiness of our global planetary defense capabilities. The exercise was carried out with the support of NASA’s PDCO, the Minor Planet Center (MPC) — the internationally-recognized authority for monitoring the position and motion of small celestial bodies — and the International Asteroid Warning Network (IAWN). The exercise was named the Apophis Campaign since it coincided with the close approach of the NEO (99942) Apophis, which flew past Earth from December 2020 to March 2021.

Jun 9, 2022

Tiny meteoroid bops $10 billion Webb space telescope

Posted by in categories: asteroid/comet impacts, existential risks

WASHINGTON, June 8 (Reuters) — A tiny meteoroid struck the newly deployed James Webb Space Telescope in May, knocking one of its gold-plated mirrors out of alignment but not changing the orbiting observatory’s schedule to become fully operational shortly, NASA said on Wednesday.

The little space rock hit the $10 billion telescope sometime in late May and left a small but noticeable effect in the telescope’s data, NASA said in a statement, adding that it was the fifth and largest hit to the telescope since its December launch. read more

“After initial assessments, the team found the telescope is still performing at a level that exceeds all mission requirements,” NASA said. “Thorough analysis and measurements are ongoing.”

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